Narrow-band wavelength selective optical coupler

Details Narrow-band wavelength selective optical coupler Narrow-band wavelength selective optical coupler

1986-02-24

1988-04-12

Wan, Gene

350 9615, G02B 634

Patent

active

047370076

ABSTRACT:
Narrow band, wavelength selective optical coupling is achieved in a device including first and second optical transmission media and a filter. The first and second optical transmission media are in substantially close proximity of each other in a predetermined interaction region to provide evanescent coupling therebetween. The filter is positioned on the first optical transmission medium in the predetermined region for causing the coupling to be wavelength selective and contradirectional from the first optical transmission means to the second optical transmission means. One exemplary embodiment of the coupler includes optical fibers as the transmission media and a Bragg reflection grating integrally formed on the first transmission medium as the filter. Other embodiments include the use of semiconductor waveguides as the optical transmission media.

REFERENCES:
patent: 4006963 (1977-02-01), Baues et al.
patent: 4097117 (1978-06-01), Neil et al.
patent: 4307933 (1981-12-01), Palmer et al.
patent: 4317614 (1982-03-01), Palmer
patent: 4387954 (1983-06-01), Beasley
Optics Letters, "Grating-Fiber Coupler as a High-Resolution Spectrometer", Russell et al., vol. 10, No. 6, Jun. 1985.
"Frequency Selective Coupler for Integrated Optic Systems" Optics Communications, vol. 7, No. 3; Mar. 1973, C. Elachi and C. Yeh, pp. 201-204.
"Contradirectional Frequency-Selective Couplers for Guided-Wave Optics" Applied Optics, vol. 19, No. 16; 15, Aug. 1980, P. Yeh and H. F. Taylor, pp. 2848-2855.
"An Analysis for Contradirectional-Coupler-Type Optical Grating Filters" Journal of Lightwave Technology, vol. LT-3, No. 4, Aug. 1985, N. Imoto, pp. 895-900.

Affiliated with

Also associated with

Rating

Narrow-band wavelength selective optical coupler does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Narrow-band wavelength selective optical coupler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Narrow-band wavelength selective optical coupler will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1425624