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                                                                   EXHIBIT 10.11

                            INDEMNIFICATION AGREEMENT

THIS INDEMNIFICATION AGREEMENT is made effective as of the ___ day of _______,
2000, by and between Luminent, Inc., a Delaware corporation (the "Company") and
_______________ ("Indemnitee").

WHEREAS, it is essential to the Company to retain and attract as directors and
executive officers the most capable persons available;

WHEREAS, Indemnitee has recently become, or continues to serve as a(n)
_____________ of the Company;

WHEREAS, the Bylaws and the Certificate of Incorporation of the Company require
the Company to indemnify its directors and officers to the fullest extent
permitted by law and Indemnitee is serving as a director or executive officer of
the Company, in part, in reliance of such Bylaws and Certificate of
Incorporation; and

WHEREAS, in recognition of Indemnitee's need for substantial protection against
personal liability, to maintain Indemnitee's continued service to the Company in
an effective manner in reliance on the aforesaid Bylaws and Certificate of
Incorporation, in part, to provide Indemnitee with specific contractual
assurance that the protection promised by such Bylaws and Certificate of
Incorporation will be available to Indemnitee (regardless of, among other
things, any amendment to or revocation of such Bylaws and Certificate of
Incorporation or any change in the composition of the Company's Board of
Directors or any acquisition transaction relating to the Company), the Company
desires to provide in this Agreement for the indemnification of and the advance
of expenses to Indemnitee to the fullest extent (whether partial or complete)
permitted by law, as set forth in this Agreement and, to the extent officers'
and directors' liability insurance is maintained by the Company, to provide for
continued coverage of Indemnitee under the Company's officers' and directors'
liability insurance policies.

NOW, THEREFORE, in consideration of the covenants contained herein and of
Indemnitee's continuing service to the Company directly, or at its request,
other enterprises, and intending to be legally bound thereby, the parties hereto
agree as follows:

1.   CERTAIN DEFINITIONS

          (a) Acquiring Person: shall mean any Person other than: (i) the
Company; (ii) any of the Company's Subsidiaries; (iii) any employee benefit plan
of the Company or of a Subsidiary of the Company or of a corporation owned
directly or indirectly by the stockholders of the Company in substantially the
same proportions as their ownership of stock of the Company; or (iv) any trustee
or other fiduciary holding securities under an employee benefit plan of the
Company or of a Subsidiary of the Company or of a corporation owned directly or
indirectly by the stockholders of the Company in substantially the same
proportions as their ownership of stock of the Company or (v) MRV
Communications, Inc.<PAGE>   1
                                                                   Exhibit 10.49

                                    AGREEMENT
                                    ---------

         THIS AGREEMENT MADE AND ENTERED INTO at Cleveland, Ohio this 3rd day of
May, 2000, by and between FOREST CITY ENTERPRISES, INC., an Ohio corporation, of
Terminal Tower, 50 Public Square, Suite 1100, Cleveland, Ohio 44113-2267,
hereinafter referred to as "Company", and JAMES A. RATNER of 19750 Shaker
Boulevard, Shaker Heights, Ohio, hereinafter referred to as "Employee".

         WHEREAS, the Company and the Employee desire to terminate the
Employment Agreement dated April 6, 1998 and enter into a new Employment
Agreement to be effective as of February 1, 2000, and

         WHEREAS, the Compensation Committee of this Company has recommended a
change in salary for the Employee to be effective as of February 1, 2000.

         NOW, THEREFORE, it is agreed that:

         1. That the Employment Agreement dated April 6, 1998 is hereby
terminated as of February 1, 2000, and that the effective date of this
Employment Agreement is February 1, 2000.

         2. The Employee, in consideration of the promises and agreements of the
Company herein contained, hereby promises to continue in the employ of the
Company for a period of one (1) year from the date of February 1, 1997, as an
Executive and Officer of the Company and to perform such duties as may be
required of him in such capacities by the Company, faithfully, honestly,
diligently and to the satisfaction of the Company. Said employment shall
continue for additional periods of one (1) year each until termination by mutual
consent, death, or by either party giving ninety (90) days written notice to
either amend or terminate this Employment Agreement to the other party prior to
the termination of any such one (1) year period.

         3. In consideration whereof, the company promises and agrees to pay the
Employee a base salary of THREE HUNDRED FIFTY THOUSAND AND 00/100 DOLLARS
($350,000.00) per year, payable from time to time during each employment year.

         4. In consideration of this Employment Agreement, if the Employee dies
while in the employ of the Company, the Company agrees to pay to the
beneficiaries of the Employee as stipulated in his Will, or designated by
written notice to the Company from the Employee during his lifetime, or
designated by operation of law if the Employee dies intestate, one hundred
percent (100%) of the base salary stated above for a period of five (5) years
following the decease of said Employee; said sum to be payable in quarterly
installments to said beneficiaries of said deceased Employee.

         5. It is mutually agreed by and between the parties hereto that the
Company may cancel or terminate this Employment Agreement at any time prior to
the expiration of said one (1) year period, or any renewal thereof, without
notice, for any conduct on the part of the Employee which injures the Company's
business, such as, but not limited to, intemperance, negligence, failure to
follow instructions or perform and fulfill the obligations on the Employee's
part to be performed hereunder to the satisfaction of the Company.

<PAGE>   2

IN WITNESS WHEREOF, the parties hereto have set their hands the day and year
first above written.

                                         FOREST CITY ENTERPRISES, INC.

                                         By:
                                            -----------------------------
                                            CHARLES A. RATNER, President
                                         By:
                                            -----------------------------
                                            THOMAS G. SMITH, Secretary

                                         --------------------------------
                                         JAMES A. RATNER, Employee<PAGE>   1
                                                                   Exhibit 10.50
                                    AGREEMENT
                                    ---------

         THIS AGREEMENT MADE AND ENTERED INTO at Cleveland, Ohio this 3rd day of
May, 2000, by and between FOREST CITY ENTERPRISES, INC., an Ohio corporation, of
Terminal Tower, 50 Public Square, Suite 1100, Cleveland, Ohio 44113-2267,
hereinafter referred to as "Company", and RONALD A. RATNER of 17300 Parkland
Drive, Shaker Heights, Ohio, hereinafter referred to as "Employee".

         WHEREAS, the Company and the Employee desire to terminate the
Employment Agreement dated April 6, 1998 and enter into a new Employment
Agreement to be effective as of February 1, 2000, and

         WHEREAS, the Compensation Committee of this Company has recommended a
change in salary for the Employee to be effective as of February 1, 2000.

         NOW, THEREFORE, it is agreed that:

         1. That the Employment Agreement dated April 6, 1998 is hereby
terminated as of February 1, 2000, and that the effective date of this
Employment Agreement is February 1, 2000.

         2. The Employee, in consideration of the promises and agreements of the
Company herein contained, hereby promises to continue in the employ of the
Company for a period of one (1) year from the date of February 1, 2000, as an
Executive and Officer of the Company and to perform such duties as may be
required of him in such capacities by the Company, faithfully, honestly,
diligently and to the satisfaction of the Company. Said employment shall
continue for additional periods of one (1) year each until termination by mutual
consent, death, or by either party giving ninety (90) days written notice to
either amend or terminate this Employment Agreement to the other party prior to
the termination of any such one (1) year period.

         3. In consideration whereof, the company promises and agrees to pay the
Employee a base salary of THREE HUNDRED FIFTY THOUSAND AND 00/100 DOLLARS
($350,000.00) per year, payable from time to time during each employment year.

         4. In consideration of this Employment Agreement, if the Employee dies
while in the employ of the Company, the Company agrees to pay to the
beneficiaries of the Employee as stipulated in his Will, or designated by
written notice to the Company from the Employee during his lifetime, or
designated by operation of law if the Employee dies intestate, one hundred
percent (100%) of the base salary stated above for a period of five (5) years
following the decease of said Employee; said sum to be payable in quarterly
installments to said beneficiaries of said deceased Employee.

         5. It is mutually agreed by and between the parties hereto that the
Company may cancel or terminate this Employment Agreement at any time prior to
the expiration of said one (1) year period, or any renewal thereof, without
notice, for any conduct on the part of the Employee which injures the Company's
business, such as, but not limited to, intemperance, negligence, failure to
follow instructions or perform and fulfill the obligations on the Employee's
part to be performed hereunder to the satisfaction of the Company.

<PAGE>   2

IN WITNESS WHEREOF, the parties hereto have set their hands the day and year
first above written.

                                          FOREST CITY ENTERPRISES, INC.

                                          By:
                                             -------------------------------
                                             CHARLES A. RATNER, President
                                          By:
                                             -------------------------------
                                             THOMAS G. SMITH, Secretary

                                          ----------------------------------
                                          RONALD A. RATNER, Employee

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