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- Jacobsson, Björn, et al.
(författare)
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Narrowband bulk Bragg grating optical parametric oscillator
- 2005
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Ingår i: Optics Letters. - 0146-9592 .- 1539-4794. ; 30:17, s. 2281-2283
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Tidskriftsartikel (refereegranskat)abstract
- A narrowband, pulsed optical parametric oscillator (OPO) whose output coupler is a bulk glass Bragg grating is demonstrated. The OPO is based on periodically poled KTiOPO4 and is pumped by a pulsed, frequency-doubled Nd:YAG laser at 532 nm, generating a signal at 975 nm with a total efficiency of 35%. This novel and compact device shows a spectral bandwidth of 0.16 nm (50 GHz), a decrease by a factor of 20 compared with that when a conventional mirror is used. By using a folded cavity, we demonstrate tunable radiation with a tuning range of 60 nm and maintained spectral bandwidth.
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