Photonic integrated circuit based planar wavelength meter

Details Photonic integrated circuit based planar wavelength meter Photonic integrated circuit based planar wavelength meter

2006-06-13

2006-06-13

Toatley, Jr., Gregory J. (Department: 2877)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

C385S037000

Reexamination Certificate

active

07061610

ABSTRACT:
A method and device for measuring the wavelength of a source, for example monitoring a laser used in DWDM fiber optic communications systems, wherein the method and device comprise using a coarse arrayed waveguide grating (AWG) to resolve an ambiguity of wavelength measurement in a fine arrayed waveguide grating. The wavelength monitor or meter of the present invention may be configured as a standalone device suitable for use in many different applications and may also be integrated into a laser or laser array for use in DWDM fiber optic communications systems.

REFERENCES:
patent: 4729658 (1988-03-01), Poultney
patent: 6701042 (2004-03-01), Kang et al.
patent: 6859469 (2005-02-01), Hedin et al.
patent: 2001/0024275 (2001-09-01), Suzuki et al.
patent: 2002/0154855 (2002-10-01), Rose et al.
patent: 2002/0191887 (2002-12-01), Bidnyk

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