Generation of tunable ultrashort pulses in a dynamic distributed feedback laser

Journal Article · Sat Dec 01 04:00:00 EST 1984 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1984v014n12ABEH006235· OSTI ID:5862028

Bezrodnyi, V I; Zabello, E I; Tikhonov, E A

A study was made of the operation of a dynamic distributed feedback (DFB) laser utilizing dye-activated polyurethane and pumped by a train of ultrashort pulses from a YAG:Nd/sup 3 +/ laser. An interference system with division of the pump pulse duration was used to produce the dynamic DFB. Direct measurements were made of the duration of the generated pulses using an Agat-SF streak camera and it was found that the duration of the output pulses was considerably shorter (up to four times) than that of the pump pulses. Tuning in the 560--600 nm range with an ultrashort pulse duration of approx.8 psec, a divergence of approx.1 mrad, and a lasing efficiency of approx.3% were achieved. The evolution of the ultrashort pump and lasing pulse trains indicated that a thermal phase grating had no influence on the operation of this laser.

• Research Organization: Institute of Physics, Academy of Sciences of the Ukrainian SSR, Kiev
• OSTI ID: 5862028
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 14:12; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
EFFICIENCY
ELECTRONIC EQUIPMENT
EQUIPMENT
FEEDBACK
FUNCTION GENERATORS
LASERS
OPERATION
PULSE GENERATORS
PULSES
TUNING