Abstract
A single frequency Ti:sapphire (Ti:S) laser with continuous frequency-tuning and low intensity noise is presented, in which an extra nonlinear (NL) loss crystal is placed inside the resonator instead of the traditional etalon locking system. When a NL crystal is inserted into a home-made Ti:S laser resonator, the single frequency laser of 1.27 W at 795 nm with a continuous frequency-tuning range of 48 GHz is realized under the pump level of 11.27 W and the intensity noise at the lower frequencies is successfully suppressed.
Highlights
All-solid-state continuous-wave (CW) single-frequency tunable Ti:sapphire (Ti:S) lasers with compact configuration and high efficiency have been extensively applied to high-sensitive laser#220948 - $15.00 USD Received 18 Aug 2014; revised 23 Sep 2014; accepted 23 Sep 2014; published 30 Sep 2014(C) 2014 OSA spectroscopy, quantum communications, high-precision interferometry and so on
A single frequency Ti:sapphire (Ti:S) laser with continuous frequency-tuning and low intensity noise is presented, in which an extra nonlinear (NL) loss crystal is placed inside the resonator instead of the traditional etalon locking system
When a NL crystal is inserted into a home-made Ti:S laser resonator, the single frequency laser of 1.27 W at 795 nm with a continuous frequency-tuning range of 48 GHz is realized under the pump level of 11.27 W and the intensity noise at the lower frequencies is successfully suppressed
Summary
All-solid-state continuous-wave (CW) single-frequency tunable Ti:sapphire (Ti:S) lasers with compact configuration and high efficiency have been extensively applied to high-sensitive laser. Four commercial versions of continuous frequency tunable CW Ti:S lasers have been developed by Coherent [4], Spectra-Physics [5], Tekhnoscan Joint-Stock [6] and M-square companies [7], respectively. In all these laser products, in order to prevent the mode-hopping during the frequency-tuning, the peak of an etalon transmission curve is locked on the wavelength of the oscillating laser. In 2014, we theoretically and experimentally investigated the physical conditions of single-longitudinal-mode (SLM) operation for high-power all-solid-state lasers at a given oscillating frequency. By means of the action of the intracavity NL loss, a laser with the continuous frequency-tuning and low intensity noise can be realized only by continuously scanning the length of the resonator without the use of any frequency-locking system
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