Passively Q-switched waveguide lasers based on two-dimensional transition metal diselenide
We reported on the passively Q-switched waveguide lasers based on few-layer transition metal diselenide, including molybdenum diselenide (MoSe ) and tungsten diselenide (WSe ), as saturable absorbers. The MoSe and WSe membranes were covered on silica wafers by chemical vapor deposition (CVD). A low-...
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| Published in | Optics express Vol. 24; no. 10; pp. 10385 - 10390 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
United States
16.05.2016
|
| Online Access | Get full text |
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| Summary: | We reported on the passively Q-switched waveguide lasers based on few-layer transition metal diselenide, including molybdenum diselenide (MoSe
) and tungsten diselenide (WSe
), as saturable absorbers. The MoSe
and WSe
membranes were covered on silica wafers by chemical vapor deposition (CVD). A low-loss depressed cladding waveguide was produced by femtosecond laser writing in a Nd:YAG crystal. Under optical pump at 808 nm, the passive Q-switching of the Nd:YAG waveguide lasing at 1064 nm was achieved, reaching maximum average output power of 115 mW (MoSe
) and 45 mW (WSe
), respectively, which are corresponding to single-pulse energy of 36 nJ and 19 nJ. The repetition rate of the Q-switched waveguide lasers was tunable from 0.995 to 3.334 MHz (MoSe
) and 0.781 to 2.938 MHz (WSe
), and the obtained minimum pulse duration was 80ns (MoSe
) and 52 ns (WSe
), respectively. |
|---|---|
| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1094-4087 1094-4087 |
| DOI: | 10.1364/OE.24.010385 |