A continuous intracavity frequency-doubled singly resonant optical parametric oscillator (OPO) is stabilized to the side of the transmission peak of a medium finesse Fabry-Perot cavity. The narrow bandwidth of the frequency noise of this OPO allows this simple scheme to lead to a stability of a few kilohertz with respect to the locking etalon. The system, operating in the visible domain, remain...

We study singly-resonant optical parametric oscillators with chirped quasi-phasematching gratings as the gain medium, for which adiabatic optical parametric amplification has the potential to enhance conversion efficiency. This configuration, however, has a modulation instability which must be suppressed in order to yield narrowband output signal pulses. We show that high conversion efficiency ...

We present a reliable, narrow-linewidth (100-kHz) continous-wave optical parametric oscillator (OPO) suitable for high-resolution spectroscopy applications. The singly resonant OPO with a resonated pump is based on periodically poled lithium niobate crystal and features a specially designed intracavity etalon, which permits precise tuning to any desired wavelength in a wide range. We demonstrat...

The optical performances of a liquid crystal ~LC! Fabry–Perot ~FP! etalon in various configurations were simulated by a faster 434 matrix method. Results show that the FP with a 90° twisted nematic LC is polarization insensitive if the applied voltage exceeds ;3X of the Freedericksz transition threshold. This method can well depict the transmission spectra of the FP cavity and, therefore, is us...

We report a frequency-stabilized semiconductor-based mode-locked laser that uses a phase modulator and an intracavity Fabry-Perot etalon for both active mode-locking and optical frequency stabilization. A twofold multiplication of the repetition frequency of the laser is inherently obtained in the process. The residual timing jitter of the mode-locked pulse train is 13 fs (1 Hz to 100 MHz), mea...

We propose the design for a switchable mirror with high efficiency and a 30 nm bandwidth. The device is based on a liquid crystal filled etalon. Broad bandwidth is achieved through the use of integrated half-wave layers into the dielectric stack design, while high efficiency is achieved using a polarization independent liquid crystal effect. Potential applications in the area of displays are al...

We report on the results of an in depth investigation of the extended [O ii]λ3727 line-emission in 11 3CR radio galaxies (0.5 < z < 1.1). Using a FabryPerot etalon to obtain both the kinematics and morphology of the [O ii] gas, our goal was to find the mechanisms responsible for the creation and excitation of this warm gas, and the source of its alignment with the radio emission.

MAEDA, M. w., PATEL, I. s., SMITH, D. A., LIN, c., SAIFT, M. A., and VON LMMAN, A.: 'An electronically tunable fiber laser with a liquidcrystal etalon filler as the wavelength-tuning element', IEEE Photonics Technol. Lett., 1990,2, pp. 787-789 IWATYUKI, K., OKAMURA, H., and SARWATARI, M.: 'Wavelengthtunable single frequency and single-polarization Er-doped fibre ring-laser with l 4 k H z linewi...