Pigtailed nonconfocal spherical mirror Fabry-Perot tunable filter with FSR over 40 nm

Yuqiao Liu; Ailun Ye

doi:10.1117/12.252033

20 September 1996 Pigtailed nonconfocal spherical mirror Fabry-Perot tunable filter with FSR over 40 nm

Yuqiao Liu, Ailun Ye

Proceedings Volume 2893, Fiber Optic Components and Optical Communication; (1996) https://doi.org/10.1117/12.252033
Event: Photonics China '96, 1996, Beijing, China

Abstract

The non-confocal spherical mirror Fabry-Perot resonator is capable of having very high finesse and stability. However, the higher-order cavity modes (HOCM) of the non-confocal resonator must be controlled to attain any useful performance. Precision mode-matching collimators and/or an intra-cavity aperture is suggested and demonstrated here to diminish the HOCM. Mode-matching collimators at both input and output port of the resonator are recommended to achieve higher HOCM depression ratio, better long-term stability and a pigtailed in-line structure. A preliminary filter with mode-matching collimators at both input and output port of the cavity has shown a finesse of 100, HOCM depression ratio of 25 dB, insertion loss of 3.5 dB and a free spectrum range over 40 nm at 1.5 micrometers band.

Citation Download Citation

Yuqiao Liu and Ailun Ye "Pigtailed nonconfocal spherical mirror Fabry-Perot tunable filter with FSR over 40 nm", Proc. SPIE 2893, Fiber Optic Components and Optical Communication, (20 September 1996); https://doi.org/10.1117/12.252033

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