For most experimental applications where organic dye lasers are used as light sources, it is necessary to narrow the spectral output which is up to a few hundred Ängstroms wide. Spectral narrowing down to 0.5 — 1 Ä can be achieved by using a diffraction grating as one of the resonator mirrors a set of prisms2 or an interference filter inside the laser cavity3. Further reduction of the emission ...

We propose a matched Fabry-Perot configuration for frequency stabilization where each user locks its laser to a local Fabry-Perot interferometer which is perfectly matched to a master Fabry-Perot. Experimentally, a user Fabry-Perot was matched and locked to a remote master Fabry-Perot.

A static filter array is developed based on Fabry–Perot cavities operating in the mid-infrared range from 2 to 4.5 µm, matching absorption region of several gases relevant for air quality monitoring. The filters include two distributed Bragg reflectors and a high-index tuning element with varying thickness between. display high peak transmittance ( > 80 % $>80\%$ ) controllable width. robustnes...

A simple system that simultaneously supports active mode-locking and self-seeding schemes for wavelength-tunable optical short-pulse generation is proposed. The system consists of a gain-switched Fabry-Perot laser diode, an erbium-doped fiber amplifier, a tunable optical filter, and two circulators. The mode-locked optical pulses exhibit good stability, a high side-mode suppression ratio of mor...

We present a method by which the effect of laser field variations on the signal output of an interferometric gravitational wave detector is rigorously determined. Using the Laser Interferometer Gravitational Wave Observatory (LIGO) optical configuration of a power recycled Michelson interferometer with Fabry-Perot arm cavities as an example, we calculate the excess noise after the input filter ...

Optical microsystems with high spectral selectivity and fabrication compatible with a standard CMOS process have been realized. PN junction photodiodes are used for photodetection. A multi-layer optical filter fabricated on top of the active photodiode forms a Fabry-Perot optical resonance cavity. The resonance wavelength can be designed within the entire visible spectrum. The filters are fabri...

We demonstrate a high-speed tunable, continuous wave laser source for Fourier domain OCT. The laser source is based on a fiber coupled, semiconductor optical amplifier and a tunable ultrahigh finesse, fiber Fabry Perot filter for frequency tuning. The light source provides frequency scan rates of up to 20,000 sweeps per second over a wavelength range of >70 nm FWHM at 1330 nm, yielding an axial...