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Exhibit 3.3
 AMENDED AND RESTATED BYLAWS OF THE REGISTRANT
 BYLAWS
 OF
 PHOTON DYNAMICS, INC.
 a California Corporation




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T able of Contents
 PageARTICLE 1 OFFICES
    
    
    1Section 1.1 Principal Office
    
    
    1Section 1.2 Other Offices
    
    
    1ARTICLE 2 DIRECTORS
    
    
    1Section 2.1 Exercise of Corporate Powers
    
    
    1Section 2.2 Number
    
    
    1Section 2.3 Need Not Be Shareholders
    
    
    1Section 2.4 Compensation
    
    
    1Section 2.5 Election and Term of Office
    
    
    2Section 2.6 Vacancies
    
    
    2Section 2.7 Removal
    
    
    2Section 2.8 Meetings of Directors
    
    
    3ARTICLE 3 OFFICERS
    
    
    4Section 3.1 Election and Qualifications
    
    
    4Section 3.2 Term of Office and Compensation
    
    
    4Section 3.3 Removal and Vacancies
    
    
    4ARTICLE 4 CHAIRMAN OF THE BOARD
    
    
    5ARTICLE 5 PRESIDENT
    
    
    5Section 5.1 Powers and Duties
    
    
    5Section 5.2 President Pro Tem
    
    
    5ARTICLE 6 VICE PRESIDENT
    
    
    5ARTICLE 7SECRETARY
    
    
    6Section 7.1 The powers and duties of the Secretary are:
    
    
    6ARTICLE 8 CHIEF FINANCIAL OFFICER
    
    
    7Section 8.1 The powers and duties of the Chief Financial Officer are:
    
    
    7ARTICLE 9 COMMITTEES OF THE BOARD
    
    
    7Section 9.1 Appointment and Procedure
    
    
    7Section 9.2 Powers
    
    
    8Section 9.3 Executive Committee
    
    
    8ARTICLE 10 MEETINGS OF SHAREHOLDERS
    
    
    8
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T able of Contents
 PageSection 10.1 Place of Meetings
    
    
    8Section 10.2 Annual Meetings
    
    
    8Section 10.3 Special Meetings
    
    
    11Section 10.4 Notice of Meetings
    
    
    11Section 10.5 Delivery of Notice
    
    
    11Section 10.6 Adjourned Meetings
    
    
    11Section 10.7 Consent To Shareholders Meeting
    
    
    12Section 10.8 Notice of Business to be Transacted in Certain Cases
    
    
    12Section 10.9 Quorum Vote Required
    
    
    12Section 10.10 Actions Without Meeting
    
    
    13Section 10.11 Revocation of Consent
    
    
    13Section 10.12 Voting Rights
    
    
    14Section 10.13 Determination of Holders of Record
    
    
    14Section 10.14 Elections For Directors
    
    
    14Section 10.15 Proxies
    
    
    15Section 10.16 Inspectors of Election
    
    
    15ARTICLE 11 SUNDRY PROVISIONS
    
    
    16Section 11.1 Shares Held by The Corporation
    
    
    16Section 11.2 Certificates of Stock
    
    
    16Section 11.3 Lost Certificates
    
    
    16Section 11.4 Certification and Inspection of Bylaws
    
    
    16Section 11.5 Notices
    
    
    16Section 11.6 Reports to Shareholders
    
    
    17Section 11.7 Indemnification of Directors, Officers, and Employees
    
    
    17Section 11.8 Loans to Officers
    
    
    19ARTICLE 12 CONSTRUCTION OF BYLAWS WITH REFERENCE TO PROVISIONS OF LAW
    
    
    20Section 12.1 Definitions
    
    
    20Section 12.2 Bylaw Provisions Additional and Supplemental to Provisions of Law
    
    
    20
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T able of Contents
 PageSection 12.3 Bylaw Provisions Contrary to Or Inconsistent With Provisions of Law
    
    
    20ARTICLE 13 ADOPTION, AMENDMENT, OR REPEAL OF BYLAWS
    
    
    20Section 13.1 By Shareholders
    
    
    20Section 13.2 By The Board of Directors
    
    
    20
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BYLAWS
 OF
 PHOTON DYNAMICS, INC.
 A CALIFORNIA CORPORATION
 
 ARTICLE 1
 OFFICES
 Section 1.1 Principal Office
 Section 1.2 Other Offices
 ARTICLE 2
 DIRECTORS
 Section 2.1 Exercise of Corporate Powers
 Section 2.2 Number
 Section 2.3 Need Not Be Shareholders
 Section 2.4 Compensation
 1




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Section 2.5 Election and Term of Office
 Section 2.6 Vacancies
 Section 2.7 Removal
 2.7.1 General Rule
 2.7.2 Supermajority Vote Required
 2.7.3 Class Vote
 2.7.4 Effect of Reduction of Size of Board
 2




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Section 2.8 Meetings of Directors.
 2.8.1 Place of Meetings
 2.8.2 Regular Meetings
 2.8.3 Special Meetings
 2.8.4 Notice of Meetings
 2.8.5 Quorum
 2.8.6 Adjourned Meetings
 3




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2.8.7 Waiver of Notice and Consent
 2.8.8 Action Without A Meeting
 2.8.9 Conference Telephone Meetings
 2.8.10 Meetings of Committees
 ARTICLE 3
 OFFICERS
 Section 3.1 Election and Qualifications
 Section 3.2 Term of Office and Compensation
 Section 3.3 Removal and Vacancies
 4




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ARTICLE 4
 CHAIRMAN OF THE BOARD
  ARTICLE 5
 PRESIDENT
 Section 5.1 Powers and Duties
 (a)
 (b)
 (c)
 (d)
 Section 5.2 President Pro Tem
  5




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ARTICLE 6
 VICE PRESIDENT
  ARTICLE 7
 SECRETARY
 Section 7.1
 (a)
 (b)
 (c)
 (d)
 (e)
 6




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(f)
 (g)
 ARTICLE 8
 CHIEF FINANCIAL OFFICER
 Section 8.1
 (a)
 (b)
 (c)
 (d)
 (e)
 (f)
 7




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ARTICLE 9
 COMMITTEES OF THE BOARD
 Section 9.1 Appointment and Procedure
 Section 9.2 Powers
 (a)
 (b)
 (c)
 (d)
 (e)
 (f)
 (g)
 Section 9.3 Executive Committee
 8




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ARTICLE 10
 MEETINGS OF SHAREHOLDERS
 Section 10.1 Place of Meetings
 Section 10.2 Annual Meetings
 10.2.1 Time of Annual Meetings
 10.2.2 Nominations and Proposals by Shareholders at Annual Meetings
 (a)
 (b) th th
 9




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(c)
 (d) th
 (e)
 10




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(f)
 (g)
 Section 10.3 Special Meetings
 Section 10.4 Notice of Meetings
  Section 10.5 Delivery of Notice
 11




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Section 10.6 Adjourned Meetings
 Section 10.7 Consent To Shareholders Meeting
  Section 10.8 Notice of Business to be Transacted in Certain Cases
 (a)
 (b)
 12




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(c)
 (d)
 (e)
 Section 10.9 Quorum Vote Required
 10.9.1 Quorum Required
 10.9.2 Continuation of Business Despite Lack of Quorum
 10.9.3 No Votes Without Quorum
 Section 10.10 Actions Without Meeting
 10.10.1 Majority Consent
 10.10.2 Notice to Nonconsenting Shareholders
 (a)
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(b)
 Section 10.11 Revocation of Consent
 Section 10.12 Voting Rights
 Section 10.13 Determination of Holders of Record
 10.13.1 Record Date
 10.13.2 Absence of Determination by Board
 (a)
 (b)
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(c)
 10.13.3 Adjournments
 10.13.4 Effect of Post Record Date Transfers
 Section 10.14 Elections For Directors
 10.14.1 Directors Elected
 10.14.2 Ballot 0ptional
 Section 10.15 Proxies
 10.15.1 Proxies Authorized
 10.15.2 Term of Proxy
 10.15.3 Death of Proxy Maker
 15




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Section 10.16 Inspectors of Election
 10.16.1 Appointment
 10.16.2 Duties
 10.16.3 Good Faith; Acts
 ARTICLE 11
 SUNDRY PROVISIONS
 Section 11.1 Shares Held by The Corporation
 Section 11.2 Certificates of Stock
 16




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Section 11.3 Lost Certificates
 Section 11.4 Certification and Inspection of Bylaws
 Section 11.5 Notices
 Section 11.6 Reports to Shareholders
 Section 11.7 Indemnification of Directors, Officers, and Employees
 11.7.1 Agent
 17




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11.7.2 Indemnification for Third Party Claims
 11.7.3 Indemnification for Claims by The Corporation
 (a)
 (b)
 (c)
 11.7.4 Indemnification for Successful Defense
 18




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11.7.5 Determination Required to Permit Indemnification
 (a)
 (b)
 (c)
 11.7.6 Advances of Expenses
 11.7.7 Prohibition of Nonconforming Arrangements
 11.7.8 Prohibitions on Indemnification
 (a)
 (b)
 11.7.9 Insurance
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11.7.10 Application of Other Laws
 Section 11.8 Loans to Officers
 (a)
 (b)
 (c)
 ARTICLE 12
 CONSTRUCTION OF BYLAWS WITH REFERENCE TO PROVISIONS OF LAW
 Section 12.1 Definitions
 Section 12.2 Bylaw Provisions Additional and Supplemental to Provisions of Law
 Section 12.3 Bylaw Provisions Contrary to Or Inconsistent With Provisions of Law
 20




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ARTICLE 13
 ADOPTION, AMENDMENT, OR REPEAL OF BYLAWS
 Section 13.1 By Shareholders
 Section 13.2 By The Board of Directors
 21