Coherent light generators – Particular beam control device – Optical output stabilization
Reexamination Certificate
2006-06-14
2010-06-08
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular beam control device
Optical output stabilization
C372S020000, C372S029021, C372S030000, C372S031000, C372S034000
Reexamination Certificate
active
07733929
ABSTRACT:
A wavelength tunable laser module for DWDM is used, in which a single electroabsorption modulator integrated laser is mounted and an oscillation wavelength is made tunable by temperature control. Driving conditions of a laser and a modulator are determined such that they have approximately the same modulation and transmission characteristics in a temperature control range. Such an electroabsorption modulator integrated laser is used and the driving conditions are incorporated, thereby a small, inexpensive wavelength tunable optical transmitter can be provided.
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Wide Temperature Range (0 to 85° C.), 40-km SMF Transmission of a 1.55-μm, 10-Gbit/s InGaAlAs Electroabsorption Modulator Integrated DFB Laser, Shigeki Makino, et al., © 2005 Optical Society of America, 3 pages.
European Search Report issued in corresponding European Patent Application No. 06012308.0, dated Jan. 16, 2008.
Naoe Kazuhiko
Okayasu Masanobu
Sasada Noriko
Uomi Kazuhise
Antonelli, Terry Stout & Kraus, LLP.
Hagan Sean
Harvey Minsun
Opnext Japan, Inc.
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