Multi-pass etalon filter

Details Multi-pass etalon filter Multi-pass etalon filter

1996-02-26

1997-09-09

Henry, Jon W.

Optical: systems and elements

Light interference

Produced by coating or lamina

359578, 385 31, 372 20, 372 32, G02B 528, G02B 624, G02B 642, H01S 310

Patent

active

056662254

ABSTRACT:
A multi-pass Fabry-Perot etalon, or bandpass, filter, has a Fabry-Perot cavity defined by two partially reflective mirrors with a gap therebetween and a third reflecting mirror positioned adjacent said two mirrors and arranged to reflect substantially any light eliting said cavity back into it. The filter can replace two single-pass Fabry-Perot etalon filters and can provide lower signal loss and simpler wavelength control.

REFERENCES:
patent: 4076422 (1978-02-01), Kohno
patent: 4213677 (1980-07-01), Sugimoto et al.
patent: 4285570 (1981-08-01), Minumura et al.
patent: 4304460 (1981-12-01), Tanaka et al.
patent: 4550975 (1985-11-01), Levinson et al.
patent: 4553816 (1985-11-01), Durand et al.
patent: 5283845 (1994-02-01), Ip
patent: 5287214 (1994-02-01), Robertson et al.
patent: 5481402 (1996-01-01), Cheng et al.
patent: 5539577 (1996-07-01), Si et al.

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