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High power high repetition rate picosecond optical parametric oscillator pumped by frequency doubled all-fiber Yb-doped MOPA

High power high repetition rate picosecond optical parametric oscillator pumped by frequency doubled all-fiber Yb-doped MOPA
High power high repetition rate picosecond optical parametric oscillator pumped by frequency doubled all-fiber Yb-doped MOPA
We demonstrate a lithium triborate (LBO) optical parametric oscillator (OPO), which is synchronously pumped with a pulse-compressed and frequency-doubled master-oscillator power-amplifier (MOPA) system consisting of a gain-switched laser diode and a series of ytterbium-doped fiber amplifiers. The 20ps pulses from the MOPA were compressed in a transmission grating compressor down to 4.4ps with a throughput efficiency of ~70% and subsequently frequency-doubled with an efficiency of ~60% in a 20mm long LBO to a maximum of ~25W. With a typical pump power of 17W for the OPO, we obtained a maximum combined signal and idler output power of 2.5W (at 877nm) and 1.7W (at 1.3µm). Individually, a maximum signal power of up to 3.7W at 740 nm was obtained with a signal pulse duration of ~3.2ps. The OPO was widely tunable from 651nm-1040nm (signal) and from 1081nm-2851nm (idler). To the best of our knowledge, this is the highest output power from a green-pumped LBO OPO. The fiber-based pump source can potentially be operated between 100MHz and 1GHz, which in combination with the few-picosecond pulses and the near-IR tunability of the OPO is a very attractive source for nonlinear microscopy.
Kienle, Florian
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Alam, S.-U.
2b6bdbe5-ddcc-4a88-9057-299360b93435
Teh, P.S.
17137d0f-4594-4db7-9821-11a6bc03fcce
Lin, Dejiao
3f549d76-a6b0-47a7-a1be-c0daa7d47468
Price, J.H.V.
fddcce17-291b-4d01-bd38-8fb0453abdc8
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Kienle, Florian
d07e440d-09e4-4f71-b322-ed6587117874
Alam, S.-U.
2b6bdbe5-ddcc-4a88-9057-299360b93435
Teh, P.S.
17137d0f-4594-4db7-9821-11a6bc03fcce
Lin, Dejiao
3f549d76-a6b0-47a7-a1be-c0daa7d47468
Price, J.H.V.
fddcce17-291b-4d01-bd38-8fb0453abdc8
Hanna, D.C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead

Kienle, Florian, Alam, S.-U., Teh, P.S., Lin, Dejiao, Price, J.H.V., Hanna, D.C., Richardson, D.J. and Shepherd, D.P. (2012) High power high repetition rate picosecond optical parametric oscillator pumped by frequency doubled all-fiber Yb-doped MOPA. SPIE Photonics Europe 2012, , Brussels, Belgium. 16 - 19 Apr 2012. (doi:10.1117/12.922852).

Record type: Conference or Workshop Item (Other)

Abstract

We demonstrate a lithium triborate (LBO) optical parametric oscillator (OPO), which is synchronously pumped with a pulse-compressed and frequency-doubled master-oscillator power-amplifier (MOPA) system consisting of a gain-switched laser diode and a series of ytterbium-doped fiber amplifiers. The 20ps pulses from the MOPA were compressed in a transmission grating compressor down to 4.4ps with a throughput efficiency of ~70% and subsequently frequency-doubled with an efficiency of ~60% in a 20mm long LBO to a maximum of ~25W. With a typical pump power of 17W for the OPO, we obtained a maximum combined signal and idler output power of 2.5W (at 877nm) and 1.7W (at 1.3µm). Individually, a maximum signal power of up to 3.7W at 740 nm was obtained with a signal pulse duration of ~3.2ps. The OPO was widely tunable from 651nm-1040nm (signal) and from 1081nm-2851nm (idler). To the best of our knowledge, this is the highest output power from a green-pumped LBO OPO. The fiber-based pump source can potentially be operated between 100MHz and 1GHz, which in combination with the few-picosecond pulses and the near-IR tunability of the OPO is a very attractive source for nonlinear microscopy.

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More information

e-pub ahead of print date: April 2012
Additional Information: 8433-1
Venue - Dates: SPIE Photonics Europe 2012, , Brussels, Belgium, 2012-04-16 - 2012-04-19
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 368324
URI: http://eprints.soton.ac.uk/id/eprint/368324
PURE UUID: 9a8f9bee-8df3-4d0a-9621-e33d16363634
ORCID for J.H.V. Price: ORCID iD orcid.org/0000-0003-0256-9172
ORCID for D.J. Richardson: ORCID iD orcid.org/0000-0002-7751-1058
ORCID for D.P. Shepherd: ORCID iD orcid.org/0000-0002-4561-8184

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Date deposited: 18 Sep 2014 10:42
Last modified: 09 Jan 2022 02:40

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Contributors

Author: Florian Kienle
Author: S.-U. Alam
Author: P.S. Teh
Author: Dejiao Lin
Author: J.H.V. Price ORCID iD
Author: D.C. Hanna
Author: D.J. Richardson ORCID iD
Author: D.P. Shepherd ORCID iD

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