Coherent light generators – Particular beam control device – Optical output stabilization
Reexamination Certificate
2005-05-24
2005-05-24
Wong, Don (Department: 2828)
Coherent light generators
Particular beam control device
Optical output stabilization
C372S043010, C372S044010, C372S045013, C372S046012, C372S049010, C372S049010, C372S049010, C372S050121, C372S099000, C372S101000, C385S049000, C385S088000, C385S089000, C385S092000
Reexamination Certificate
active
06898219
ABSTRACT:
An apparatus and method for monitoring the optical output of vertical cavity surface emitting lasers (VCSELS) utilizes a portion of light emitted by the VCSEL and scatters and/or reflects this portion of emitted light so that it is directed towards a detecting surface of a photodetector. In one embodiment, scattering elements may be incorporated within the epoxy or other coupling medium used to couple the VCSEL to the optical fiber. In another embodiment, the VCSEL may be coupled to an optical fiber secured within a ferrule which has an end surface capable of reflecting or scattering light and directing the light towards the photodetector. In another embodiment, a reflective integrating member may be alternatively or additionally used to reflect a portion of the emitted light to the photodetector. The photodetector, in conjunction with electrical circuitry to which it is coupled, develops an electrical signal which may be provided to laser control means to control and adjust the optical output of the VCSELs.
REFERENCES:
patent: 4329659 (1982-05-01), Chen
patent: 5668902 (1997-09-01), Kurata
patent: 5867622 (1999-02-01), Miyasaka et al.
patent: 5953477 (1999-09-01), Wach et al.
patent: 6001664 (1999-12-01), Swirhun et al.
patent: 6081638 (2000-06-01), Zhou
patent: 6243508 (2001-06-01), Jewell et al.
patent: 6392256 (2002-05-01), Scott et al.
patent: 6435734 (2002-08-01), Okada et al.
Encyclopeida Britannica Online (Website, Internet).p. 1.
Isaacson Dale
Malone Kevin
Scott Jeffrey
Barlow, Joseph & Holmes, Ltd.
Flores Ruiz Delma R.
Optical Communication Products, Inc.
Wong Don
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