Coherent light generators – Particular resonant cavity – Specified cavity component
Reexamination Certificate
2006-02-28
2006-02-28
Vannucci, James (Department: 2828)
Coherent light generators
Particular resonant cavity
Specified cavity component
C372S020000, C372S101000
Reexamination Certificate
active
07006551
ABSTRACT:
A method of enhancing wavelength tuning performance in an external cavity laser includes providing a diffractive focusing element, emitting light into the cavity of the laser at a range of angles relative to an optical axis of the cavity, and diffractively focusing the light back onto the optical axis at a wavelength-dependent focal distance using the diffractive focusing element. The method further includes confining the diffractive focusing to a high dispersivity portion of the diffractive focusing element. In various embodiments, the confining may include offsetting the diffractive focusing element radially relative to the optical axis, or selectively blocking a portion of the light emitted into the cavity at emission angles less than a threshold emission angle.
REFERENCES:
patent: 5386426 (1995-01-01), Stephens
patent: 5526338 (1996-06-01), Hasman et al.
patent: 5926318 (1999-07-01), Hebert
patent: 5966399 (1999-10-01), Jiang et al.
patent: 5982806 (1999-11-01), Yamaguchi et al.
patent: 6829258 (2004-12-01), Carlisle et al.
patent: 6834036 (2004-12-01), Shiono et al.
patent: 02017446.2 (2002-08-01), None
Hecht, Eugene, “Optics,” 2nd Ed., Addison-Wesley Publishing Company, Reading, MA, p. 424-430, (May , 1990).
Cassidy, Daniel T., and Hamp, Michael J., “Diffractive optical element used in an external feedback configuration to tune the wavelength of uncoated Fabry-Perot diode lasers,” Journal of Modern Optics, vol. 46, No. 7, p. 1071-1078, (1999).
Gruhlke, Russell W., “Wavelength Tuning an External Cavity Laser Without Mechanical Motion,” Aug. 2003.
Hoke, Charles D. et al., “External Cavity Laser in Which Diffractive Focusing is Confined to a Pheripheral Portion of a Diffractive Focusing Element,” Aug. 2003.
Gruhlke, Russell W., “Using Relay Lens to Enhance Optical Performance of an External Cavity Laser,” Aug. 2003.
Gruhlke Russell W.
H ke Charles D.
Agilent Technologie,s Inc.
Vannucci James
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