Coherent light generators – Particular beam control device – Having particular beam control circuit component
Reexamination Certificate
2005-05-10
2005-05-10
Wong, Don (Department: 2821)
Coherent light generators
Particular beam control device
Having particular beam control circuit component
C372S029011, C372S029014, C372S029020, C372S038100, C372S038010, C372S038020, C372S038070, C250S205000
Reexamination Certificate
active
06891866
ABSTRACT:
A method for determining a condition of the laser system includes determining a change in a laser current from an initial value. A method for measuring a laser current includes determining a difference between the values of a power supply current, which is the value of the laser current. A method for measuring a transmitted power includes generating a first control signal that sets a magnitude of a bias current supplied to a laser, generating a second control signal that sets a of a modulation current supplied to the laser, and determining a difference between values of a high and a low transmitted powers. A method for measuring a received optical power includes determining a received OMA corresponding to the power signal, which is the transmitted OMA minus a known loss through a calibration fiber that couples the laser transmitter to the laser receiver.
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Clark Randall P.
Miller Frederick W.
Robinson Michael A.
Romm Gideon Z.
Agilent Technologie,s Inc.
Al-Nazer Leith A
Wong Don
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