Methods for testing optical transmitter components

Details Methods for testing optical transmitter components Methods for testing optical transmitter components

2006-06-23

2008-08-19

Nguyen, Vincent Q (Department: 2831)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

C324S762010, C250S2140RC, C356S004060, C398S009000

Reexamination Certificate

active

07414386

ABSTRACT:
Methods for testing optical components, such as laser diodes or light emitting diodes, that are manufactured for use in optical transmitters or transceivers. The testing methods are performed using a true RMS conversion circuit in a test apparatus. The testing methods are performed by receiving an optical signal with AC and DC components from the optical component that is to be tested. The optical signal is converted to an electrical signal, and the AC and DC components of the electrical signal are separated. An RMS circuit of the test apparatus converts the AC component of the electrical signal to a DC function of the RMS value of the AC component of the electrical signal. This testing method can be used to determine whether optical components are suitable for use by customers or in products.

REFERENCES:
patent: 4990895 (1991-02-01), Juds
patent: 5214593 (1993-05-01), Magnussen, Jr. et al.
patent: 5365055 (1994-11-01), Decker et al.
Analog Devices, “LF to 2.5 GHz TruPwr Detector,” 2001, no month available.

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