Single-frequency traveling-wave Nd:YAG laser

Abstract

Single-frequency operation of a cw pumped Nd:YAG laser was achieved by using a ring cavity configuration containing a small differential loss. The resulting unidirectional traveling wave eliminated spatial hole burning, and the output of the laser was at a single frequency.

Oscillation regimes of a solid-state ring laser with active beat-note stabilization: From a chaotic device to a ring-laser gyroscope

“…Interest in ring lasers developed almost simultaneously with the invention of laser itself [1,2,3,4,5]. Intensive work on this device has been motivated both by fundamental aspects (especially in the field of non linear dynamics, phase transitions, instabilities and chaos [6,7,8,9,10,11,12,13,14,15]) and by practical applications (amongst which are the ring laser gyroscope [16,17,18] and the single-frequency unidirectional ring laser [19,20,21]). The recent achievement of active beat note stabilization in a diode-pumped Nd-YAG ring laser [22] revived interest for homogeneously broadened (e.g.…”

Monolithic, unidirectional single-mode Nd:YAG ring laser

“…Much higher single-mode power is available from a ring than from a linear resonator even without the addition of selective loss elements, such as 6talons. Successful high-power, single-mode operation of unidirectional rings has been achieved with arc-lamp-pumped Nd: YAG oscillators 3 and with commercial dye lasers. 4 Excellent frequency stability is possible when the resonator of a Nd:YAG laser is monolithic, that is, when it consists of reflective coatings applied directly to the surfaces of the Nd:YAG.…”

Development of Single-Longitudinal-Mode Selection Technology for Solid-State Lasers

“…Unidirectional operation is most commonly implemented through the use of an intracavity Faraday rotator. In 1972, Clobes and Brienza [40] achieved single-frequency operation of a Brewster-cut Nd: YAG laser by using a ring cavity configuration containing a small differential loss based on the use of a Faraday rotator. In 2009, Zhao et al [41] used a four-mirror ring cavity generating 13.6 W single-frequency output with Nd:YVO 4 /YVO 4 bonded crystals as the gain medium.…”