Document:

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                                                                   Exhibit 10.22

                               SUBLEASE AGREEMENT

         This Sublease Agreement is made and entered into the 29th day of
August,1997 by and between WYSE TECHNOLOGY INC. (hereinafter "Sublessor" or
"Wyse"), DIGITAL MICROWAVE CORPORATION (hereinafter "Sublessee" or "DMC") and
WYSE TECHNOLOGY INVESTMENTS INC. (hereinafter "Landlord" or "WTI").

         For consideration of the rent, covenants, agreements and conditions
herein contained, Sublessor, Sublessee and the Landlord hereby agree as follows:

         1.    SUBLEASED PREMISES. Wyse leases from Landlord certain premises
which contain 167,200 square feet in the building located at 3475 North First
St., San Jose, CA 95134 (hereinafter referred to as "Premises") which are the
subject of that certain Lease dated March 19, 1993 between Wyse and Landlord.
Wyse hereby subleases to DMC and DMC hereby subleases from Wyse, for the term
and upon conditions herein after set forth, the Subleased Premises, as shown on
the drawing attached hereto as Exhibit A and incorporated herein by this
reference. The Subleased Premises contains 62,023 rentable square feet ("RSF").
Landlord hereby provides his unqualified consent to this sublease of the
Subleased Premises.

         2.    TERM. Subject to the terms and conditions set forth herein, the
term of this Sublease shall commence on the date (the "Commencement Date") set
forth an Exhibit B ("Commencement Date Memorandum") and shall terminate on
January 1, 2002, except that it is understood and agreed by the Sublessee and
the Sublessor that the right and interest of Sublessee under this Sublease are
derivative of those of Sublessor under the Lease between Sublessor Landlord and
not any greater than such rights and interest of Sublessor as to the Subleased
Premises.

         3.    OCCUPANCY. Between the date first written above and September 15,
1997, Sublessor shall give Sublessee notice of the availability of the Premises
("Notice of Occupancy"). Physical occupancy will be granted to DMC within one
week of the Notice of Occupancy.

         4.    USE. Sublessee, is permitted to use the Subleased Premises for
general office, administration, assembly and warehouse activities.

         5.    RENT.

               (a)  During the term of this Sublease, Sublessee covenants and
agrees to pay to Sublessor as full rental for the Subleased Premises, without
previous notice or demand therefore, rent at the gross rate of $1.50 per moth
per RSF, which equals a total monthly payment of $93,034.50. Rent shall be paid
on or before the first day of each calendar month during the term of the
Sublease hereof, with the first such monthly installment to be paid upon the
date that DMC executes this Sublease Agreement. The first installment shall be
the rent for the month of October, 1997.

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               (b)  Notwithstanding the foregoing, Wyse will provide DMC with
two weeks free rental, from September 15, 1997 through September 30, 1997. This
is based on an anticipated Commencement Date prior to September 15.

               (c)  As security for Sublessee's faithful performance under the
Sublease, DMC shall upon execution of the Sublease pay the sum of $93,034.50
(equaling one month's rent) for security deposit. Except for reasonable charges
for cleaning the Subleased Premises, the security deposit will be remitted to
Sublessee within forty-five (45) days of the termination of the Sublease (unless
the Sublease is terminated for default of Sublessee.) Wyse is under no
obligation to keep the security deposit in an account separate from its normal
business accounts, neither is it required to accrue interest an the deposit for
the benefit of DMC.

               (d)  RENT INCLUSIONS. The gross rental rate includes:

                    (i)  Common Area Maintenance Charges (CAM), property taxes
and other operating expenses. It also includes access to and use of the
electronic security system which is installed in the building.

                    (ii) Use, by DMC's on-site employees, of the cafeteria and
recreation center (which includes lockers, showers, weight room, sauna, pool and
Jacuzzi).

         Rent does not include utilities or janitorial services (see Section 6,
below).

               (e)  LATE PAYMENTS. In the event that Sublessee fails to remit
payments as described above, Sublessee shall additionally be liable for interest
on the unpaid amount, calculated at one and one-half percent (1 1/2%) per month
(or the highest amount permitted by law) on the unpaid balance due.

          6.   CONDITION OF SUBLEASED PREMISES. Sublessee hereby agrees to
accept the Subleased Premises on an "as is" "as built" condition on the
Commencement Date of the term of this Sublease, it being understood and agreed
that Sublessor makes no warranties, express or implied, as to the Subleased
Premises including by way of example, and not limitation, any warranties of
suitability, fitness for purpose of use or habitability.

          7.   UTILITIES. Sublessee shall contract for provision of utility
services (natural gas, electricity, telephones and water) directly with the
provider(s). Sublessor shall not be responsible to provide any such utilities to
the Subleased Premises. Additionally, DMC is responsible to provide its own
janitorial services for the Subleased Premises.

          8.   INSURANCE. Sublessee shall, prior to Commencement Date, provide
Sublessor with a certificate of insurance naming Landlord and Sublessor as
additional named insureds.

          9.   DMC'S COVENANTS.

               (a)  Except as set forth in this Agreement, all Sublessee's
covenants and obligations to the Sublessor and the Landlord under this Sublease
shall be the same as the covenants and obligations of Sublessor to Landlord
under the Lease and all Amendments hereto,

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which are attached hereto as Exhibit C and incorporated herein by reference, to
the extent that such covenants and obligations are applicable to the Subleased
Premises and the Sublease terms.

               (b)  Sublessee hereby covenants and agrees to indemnify, hold
harmless and at the option of Sublessor, defend Sublessor in all suits, actions
and proceedings arising out of, related to, or concerning either (i) any default
or non-performance by Sublessee of this Sublease, including without limitation,
those covenants and obligations undertaken in the preceding subparagraph, or
(ii) the use or occupancy by Sublessee of the Subleased Premises, except to the
extent that such arises from the negligence or willful misconduct on the part of
the Sublessor.

               (c)  In the event of any dispute and/or litigation between the
Sublessee and the Landlord, the Sublessee will hold the Sublessor harmless.

          10.  WYSE'S COVENANTS.

               (a)  Except as set forth above or as otherwise required by the
context of the Lease, all of the Sublessor's covenants and obligations under the
Sublease shall be the same as the covenants and obligations of Landlord to
Sublessor under the Lease and all Amendments thereto.

               (b)  In the event of any dispute and/or litigation between the
Sublessor and the Landlord, the Sublessor will hold the Sublessee harmless.

               (c)  Wyse hereby covenants and agrees to indemnify, hold harmless
and at the option of DMC defend DMC in all suits, actions and proceedings
arising out of, related to, or concerning any default or non-performance by Wyse
of this Sublease, except to the extent that such arises from the negligence or
willful misconduct on the part of the DMC.

          11.  LANDLORD COVENANTS. Except as set forth herein, or as otherwise
required by the contents of the Lease, all of Landlord's covenants and
obligations under the Sublease shall be the same as the covenants and
obligations of Landlord to Sublessor under the Lease and all Amendments thereto.

          12.  PARKING. A minimum of four (4) parking spaces per one thousand
(1,000) RSF shall be available to DMC. Such parking spaces shall be identified
in a general manner on the Exhibit A. The spaces will not be reserved or
specifically marked as being for the benefit of DMC. Use thereof shall be in
accordance with any current Landlord rules or regulations governing same.

          13.  OPTION TO EXTEND. Wyse and Landlord shall grant DMC a one time,
personal option to extend the Term for up to three (3) years upon at least six
(6) month's written notice from DMC prior to the end of the Term. Rent for the
extended term will be at the then current fair market value for the Subleased
Premises.

          14.  SIGNS. DMC will have the right, subject to agreement by Wyse and
compliance with any applicable laws, ordinances or other regulations, to install
(i) a sign on the Subleased Premises and (ii) a monument type sign at the
parking lot entry way on First St. Any signs will be installed and maintained
solely at Sublessee's expense.

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          15.  SPECIAL ACCESS TO SUBLEASED PREMISES. In addition to rights of
access set forth in Section 12 of the Lease, Wyse shall, at all reasonable times
(and upon reasonable notice except in cases of emergency) have access via the
Subleased Premises to the "roof access door' located therein.

          16.  ASSIGNMENT. DMC shall not assign this Sublease or any of its
rights or obligations hereunder without the written consent of Wyse and WTI.
Such consent shall not be unreasonably withheld provided the proposed assignee
is financially equivalent to DMC, will use the Premises for similar purposes,
and DMC remains responsible for the assignee's performance in its role as
assignor.

          17.  MISCELLANEOUS.

               (a)  The terms "Sublessor, "Sublessee" and "Landlord" shall, as
applicable, include their legal representatives, successor and assigns. All
covenants herein made binding upon Landlord, Sublessee and Sublessor shall be
equally binding on its agents, employees and others claiming the right to be in
the Subleased Premises through or under the Sublessee or Sublessor. The Sublease
shall be binding upon and shall inure to the benefit of the parties hereto and
their respective assigns.

               (b)  This Sublease shall be governed by the laws of the State of
California.

               (c)  All notices required to be made hereunder shall be sent to
the following addresses, or such other addresses as a party may later designate:

                           To Sublessee:

                           Digital Microwave Corporation
                           170 Rose Orchard Way
                           San Jose, CA 95134
                           Attention: _________________

                           To Sublessor:

                           Wyse Technology Inc.
                           3471 N. First St., MS 150-3
                           San Jose, CA 95134-1803
                           Attention: Facilities Manager

                           To Landlord:

                           Wyse Technology Investments Inc.
                           c/o Wyse Technology Inc.
                           Same address as above for Sublessor
                           Attention: Katherine Jen

               (d)  BROKERS AND COMMISSIONS. The parties hereby represent that
other than Colliers Parrish International Inc. and Cornish & Carey Commercial
they have not obtained the

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services of any real estate brokers or agents for the purposes of leasing the
Subleased Premises and that each will indemnify and hold harmless the other
parties from such claims in the event that any other party established a right
derived from such indemnifying party to receive commissions or any payment as a
consequence of this Sublease.

         Wyse is responsible for the commission arising from the Sublease
transaction. The aforementioned brokers have separately agreed upon the method
by which the commission will be shared between them. Neither Wyse, WTI nor DMC
shall be liable to either brokerage firm for breach of such commission
agreement.

               (e)  The parties hereby agree that there shall be no recording of
this Sublease or notice of this Sublease in any registry of deeds with any
public agency, and that the terms and conditions of this Sublease are
confidential and shall not be disclosed to any third party without a need to
know for financial, legal or other substantial reasons.

               (f)  Sublessee agrees to reimburse all of Sublessor's costs and
expenses in seeking and obtaining any judicial enforcement of this Sublease,
including, without limitation, all resulting reasonable attorneys fees.

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         IN WITNESS WHEREOF, the parties hereto have caused this instrument to
be executed in triplicate as of the date first written above.

                                            DIGITAL MICROWAVE CORPORATION

                                            By: /S/ CARL A. THOMSEN
                                               ---------------------------------

                                             CARL A. THOMSEN
                                            ------------------------------------
                                            (Print or type name)

                                             VICE PRESIDENT & CFO
                                            ------------------------------------
                                            (Title)

                                             08/29/97
                                            ------------------------------------
                                            (Date)

                                            WYSE TECHNOLOGY INC.

                                            By:   /S/ GARY A. MARTELL
                                            ------------------------------------

                                             GARY A. MARTELL
                                            ------------------------------------
                                            (Print or type name)

                                             V.P. FINANCE & ADMINISTRATION
                                            ------------------------------------
                                            (Title)

                                             09/02/97
                                            ------------------------------------
                                            (Date)

                                            WYSE TECHNOLOGY INVESTMENTS INC.

                                            By:  /S/ KATHERINE JEN
                                            ------------------------------------

                                             KATHERINE JEN
                                            ------------------------------------
                                            (Print or type name)

                                             SECRETARY
                                            ------------------------------------
                                            (Title)

                                             08/30/97
                                            ------------------------------------
                                            (Date)

                               [SIGANATURE PAGE]

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                                    EXHIBIT A

                        3475 NORTH FIRST STREET, SAN JOSE

                                [OBJECT OMITTED]

                                       A-1
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August 29, 1997

Mr. Ian Stuart
Mr. Marty Morici
Colliers Parrish
1960 Alameda, Suite 100
San Jose, CA 95126

Re:      Sublease for a Portion of 3475 North First Street, San Jose, California

Gentlemen: The sublease for a portion of 3475 North First Street (62,000+/-
square feet) is contingent upon Pacific Bell waiving their legal right to the
space.

Wyse Technology has requested this acknowledgment in writing from Pacific Bell
so as to put your clients at ease.

Should you have any questions, please do not hesitate to call.

Sincerely,

CORNISH & CAREY COMMERCIAL

/s/ Kurt Heinrich                                         /s/ Chris Shaffer
Kurt Heinrich                                             Chris Shaffer
Senior Sales Associate                                    Senior Sales Associate

KH/CS:slc

cc:      Mr. Gary Martell - Wyse Technology
         Ms. Judy Galloway

                                       A-2
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                                    EXHBIT B

                           COMMENCEMENT DATE MEMORANDUM

LANDLORD:      Wyse Technology Investments, Inc., A California Corporation

SUBLESSOR:     Wyse Technology Inc., A Delaware Corporation

SUBLESSEE:     Digital Microwave Corporation, A California Corporation

Pursuant to Section 2 of the Sublease Agreement, the parties hereby acknowledge
and agree that the Commencement Date is:

September __, 1997.

The foregoing is agreed as evidenced by the authorized signatures of the parties
below.

This Memorandum is executed on ________________, 1997.

LANDLORD

Wyse Technology Investments, Inc.

By:
  -------------------------------------------

Its:
  -------------------------------------------

SUBLESSOR

Wyse Technology Inc.

By:
  -------------------------------------------

Its:
  -------------------------------------------

SUBLESSEE

Digital Microwave Corporation

By:
  -------------------------------------------

Its:
  -------------------------------------------

                                      B-1
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Rentable Square Footage of         237,926
Premises (Section l.d.):

Usable Square Footage of           24,100 square feet in Amenities Space;
Premises (Section l.d.):
                                   88,818 square feet in Building 2; and

                                   143,000 square feet in Building 3

Total:                             255,918 square feet

Use (Section 15.a.):               Computer manufacturing and research and

                                   Development facility

Term (Section 2):                  Ten (10) years commencing on
                                   Commencement Date

Commencement Date:                 June 1, 1992
(Section 2.b.)

Monthly Base Rent (Section 4):                          Monthly Rental Rate
                                          Month      Per Rentable Square Foot

                                           0-7
                                           8-19
                                          20-31
                                          32-43
                                          44-55
                                          56-67
                                          68-79
                                          90-91
                                          92-120

Estimated Operating Expenses       Annual: $
(Section 6.a.):
                                   Monthly: $

Tenant's Percentage Share          Building 2:        42.12%
(Section 6.a):
                                   Building 3:        100%

                                   Project:           54.85%

Parking Spaces (Section 33):       Reserved:         See Exhibit A

                                   Unreserved:   4 spaces/1,000 rentable square
                                   feet of the Premises minus the reserved
                                   parking spaces

                                       B-2
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Landlord's Address                 3471 N. First Street
(Section 40):                      M/S 120-3
                                   San Jose, California 95134-1803

Tenant's Address                   3471 N. First Street
(Section 40):                      M/S 120-3
                                   San Jose, California 95134-1803

"Landlord"                         "Tenant"

Wyse Technology Investments, Inc.  Wyse Technology, Inc.
a California corporation           a Delaware corporation

By:  /s/ Gary Anderson             By: /s/ Gloria Wahl
     ----------------                  -----------------
     Name: Gary Anderson               Name: Gloria C. Wahl
     Title: Vice President             Title: Treasurer

Date:  MARCH 19, 1993              Date:  MARCH 19, 1993
     ----------------                   -----------------

                                      B-3
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                                    EXHIBIT C

See Exhibit 10.19

                                       C-1<PAGE>

                                                                  Exhibit 10.23

                           OPLINK COMMUNICATIONS, INC.
                                1998 STOCK PLAN

                             STOCK OPTION AGREEMENT

     Oplink Communications, Inc. (the "Company") hereby grants an option to
purchase Shares of its Common Stock to the optionee named below on the terms
and conditions set forth in this cover sheet, the Company's 1998 Stock Plan,
and Exhibit A attached hereto (together, the "Stock Option Agreement"):

<TABLE>

  <S>                                <C>
     GRANT NUMBER:                     98-559

     DATE OF GRANT:                    5/10/00

     VESTING COMMENCEMENT DATE:        2/11/00

     EXERCISE PRICE PER SHARE:         $5.00

     TOTAL NUMBER OF SHARES GRANTED:   50,000.00

     TYPE OF OPTION:                        INCENTIVE STOCK OPTION
                                       ---
                                        X   NONQUALIFIED STOCK OPTION
                                       ---
     EXPIRATION DATE:                  MAY 10, 2010

</TABLE>

EXERCISE SCHEDULE:

     The option granted hereunder may be exercised, in whole or in part,
based on the vesting schedule as set forth below.

     Twenty-five percent (25%) of the shares subject to the shall vest in the
holder thereof on the one year anniversary of the Vesting Commencement Date
and an additional one-forty-eighth (1/48) of the shares subject to the option
shall vest in the holder thereof at the end of each full month thereafter;
PROVIDED, HOWEVER, that in the event of change of control at the Company, and
only in such event, the aforesaid vesting schedule shall accelerate in full
immediately.

     BY SIGNING THIS COVER SHEET, YOU AGREE THAT THIS STOCK OPTION AGREEMENT
IS SUBJECT TO THE TERMS AND CONDITIONS OF THIS COVER SHEET, THE 1998 STOCK
PLAN AND EXHIBIT A, WHICH IS ATTACHED HERETO AND MADE A PART OF THIS DOCUMENT.

OPTIONEE:                                 Oplink Communications, Inc.
                                          a California corporation

/s/ Robert David Spreng                   By /s/ Joe Liu
-----------------------------               --------------------------------
Robert David Spreng                         Joe Liu, Chief Executive Officer

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