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High-energy, mid-IR pulses generated by a compact, high-harmonic-cavity, optical parametric oscillator

High-energy, mid-IR pulses generated by a compact, high-harmonic-cavity, optical parametric oscillator
High-energy, mid-IR pulses generated by a compact, high-harmonic-cavity, optical parametric oscillator
Synchronously pumped optical parametric oscillators (SPOPOs) are recognized as useful laser sources for the production of tunable pulses over a broad wavelength range, including the mid-IR. This could potentially enable mid-IR materials processing applications, such as resonant infrared pulsed laser deposition, if pulses of sufficient energy could be realised. However, it is challenging to construct SPOPOs pumped with low-repetition-rate (<10 MHz) high-pulse-energy laser sources as it would normally require extremely long cavity lengths (>30 m) to match the synchronous pumping requirement. Here we report the use of an OPO cavity that is just a small fraction of the length required to match the pump repetition rate, which allows the near-IR signal to resonate in the cavity at a high harmonic of the pump repetition rate while efficiently extracting high-pulse-energy mid-IR idler pulses.
Xu, L.
b887cecd-d21e-49f4-9b45-6909a7369e84
Chan, H.-Y.
797ad953-0b41-477d-b642-5ab386983717
Alam, S.U.
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead
Xu, L.
b887cecd-d21e-49f4-9b45-6909a7369e84
Chan, H.-Y.
797ad953-0b41-477d-b642-5ab386983717
Alam, S.U.
2b6bdbe5-ddcc-4a88-9057-299360b93435
Richardson, D.J.
ebfe1ff9-d0c2-4e52-b7ae-c1b13bccdef3
Shepherd, D.P.
9fdd51c4-39d6-41b3-9021-4c033c2f4ead

Xu, L., Chan, H.-Y., Alam, S.U., Richardson, D.J. and Shepherd, D.P. (2015) High-energy, mid-IR pulses generated by a compact, high-harmonic-cavity, optical parametric oscillator. International Conference on Optical Instrument and Technology, China. 17 - 19 May 2015. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Synchronously pumped optical parametric oscillators (SPOPOs) are recognized as useful laser sources for the production of tunable pulses over a broad wavelength range, including the mid-IR. This could potentially enable mid-IR materials processing applications, such as resonant infrared pulsed laser deposition, if pulses of sufficient energy could be realised. However, it is challenging to construct SPOPOs pumped with low-repetition-rate (<10 MHz) high-pulse-energy laser sources as it would normally require extremely long cavity lengths (>30 m) to match the synchronous pumping requirement. Here we report the use of an OPO cavity that is just a small fraction of the length required to match the pump repetition rate, which allows the near-IR signal to resonate in the cavity at a high harmonic of the pump repetition rate while efficiently extracting high-pulse-energy mid-IR idler pulses.

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Published date: May 2015
Additional Information: OIT400-21
Venue - Dates: International Conference on Optical Instrument and Technology, China, 2015-05-17 - 2015-05-19
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 379444
URI: https://eprints.soton.ac.uk/id/eprint/379444
PURE UUID: 408cff8a-2974-4f46-9309-86d8e7148b85
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

Catalogue record

Date deposited: 21 Jul 2015 13:36
Last modified: 26 Jul 2019 00:38

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