Optical deflection method and optical deflection apparatus

Details Optical deflection method and optical deflection apparatus Optical deflection method and optical deflection apparatus

2007-02-21

2010-11-02

Sanghavi, Hemang (Department: 2874)

Optical waveguides

With optical coupler

Switch

C385S033000, C359S240000, C359S244000, C359S288000

Reexamination Certificate

active

07826696

ABSTRACT:
An optical deflection apparatus includes a signal light source configured to emit signal light having one or more wavelengths, a control light source configured to emit control light having a wavelength different from the wavelength of the signal light, a thermal lens forming optical element including a light absorption layer configured to transmit the signal light and selectively absorb the control light, and a beam-condensing unit configured to cause beam-condensation of the control light and the signal light at different convergence points in the light absorption layer. The thermal lens forming optical element causes convergence and divergence of the control light and the signal light on an incidence plane of the light absorption layer or its vicinity in a light traveling direction, wherein a thermal lens is reversibly formed in the light absorption layer due to a temperature increase occurring in a region where the control light is absorbed and its peripheral region, and the thermal lens changes a refractive index to change a traveling direction of the signal light.

REFERENCES:
patent: 4585301 (1986-04-01), Bialkowski
patent: 4776677 (1988-10-01), Park et al.
patent: 5121246 (1992-06-01), Lasher et al.
patent: 6265708 (2001-07-01), Tanaka et al.
patent: 7142305 (2006-11-01), Yamaguchi et al.
patent: A-60-014221 (1985-01-01), None
patent: A-08-286220 (1996-11-01), None
patent: A-08-320535 (1996-12-01), None
patent: A-08-320536 (1996-12-01), None
patent: A-09-329816 (1997-12-01), None
patent: A-10-090733 (1998-04-01), None
patent: A-10-090734 (1998-04-01), None
patent: A-10-148852 (1998-06-01), None
patent: A-10-148853 (1998-06-01), None
patent: A-11-194373 (1999-07-01), None
patent: WO 2004/027508 (2004-04-01), None
Salazar et al., “Thermal diffusivity measurements on solids using collinear mirage detection,”Journal of Applied Physics, vol. 74, No. 3, Aug. 1, 1993, pp. 1539-1547.

Affiliated with

Also associated with

Rating

Optical deflection method and optical deflection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical deflection method and optical deflection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical deflection method and optical deflection apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4252435