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Synchronously pumped optical parametric oscillators

Synchronously pumped optical parametric oscillators
Synchronously pumped optical parametric oscillators
Synchronously-pumped optical parametric oscillators (SPOPOs) operate in an interesting power/gain regime that is not generally available to short-pulse lasers. Since the parametric gain is dependent on the instantaneous pump intensity, the gain can be very high compared to that of a laser pumped by the same average power. Particularly large gains are achievable when using quasi-phase-matched (QPM) nonlinear materials. Conversely, very low thresholds can be achieved, with much lower average pump powers than needed by short-pulse lasers. This talk will describe some of the possibilities offered by these high gain SPOPOs. These include: Operation at very long idler wavelengths, where the idler suffers strong lattice absorption, but the parametric gain is still sufficient to overcome the effect of this loss. In PPLN we have reached idler oscillation even beyond 7µm. Operation as a fibre-feedback OPO (FFOPO), i.e. with an optical fibre in the feedback path of the OPO. This arrangement has provided insensitivity to the path length of the OPO resonator and has shown operation at a very high average power (18W of average signal output at ~1.5µm) Fibre-laser-pumped OPOs and diode-laser pumped OPOs. Results from the above schemes will be reported. A survey of some future prospects will also be given.
Hanna, David C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d
Hanna, David C.
3da5a5b4-71c2-4441-bb67-21f0d28a187d

Hanna, David C. (2003) Synchronously pumped optical parametric oscillators. Seventh European/French Israeli Symposium on Nonlinear and Quantum Optics (FRISNO-7). 16 - 21 Feb 2003. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Synchronously-pumped optical parametric oscillators (SPOPOs) operate in an interesting power/gain regime that is not generally available to short-pulse lasers. Since the parametric gain is dependent on the instantaneous pump intensity, the gain can be very high compared to that of a laser pumped by the same average power. Particularly large gains are achievable when using quasi-phase-matched (QPM) nonlinear materials. Conversely, very low thresholds can be achieved, with much lower average pump powers than needed by short-pulse lasers. This talk will describe some of the possibilities offered by these high gain SPOPOs. These include: Operation at very long idler wavelengths, where the idler suffers strong lattice absorption, but the parametric gain is still sufficient to overcome the effect of this loss. In PPLN we have reached idler oscillation even beyond 7µm. Operation as a fibre-feedback OPO (FFOPO), i.e. with an optical fibre in the feedback path of the OPO. This arrangement has provided insensitivity to the path length of the OPO resonator and has shown operation at a very high average power (18W of average signal output at ~1.5µm) Fibre-laser-pumped OPOs and diode-laser pumped OPOs. Results from the above schemes will be reported. A survey of some future prospects will also be given.

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Published date: 2003
Additional Information: Invited paper
Venue - Dates: Seventh European/French Israeli Symposium on Nonlinear and Quantum Optics (FRISNO-7), 2003-02-16 - 2003-02-21

Identifiers

Local EPrints ID: 41673
URI: http://eprints.soton.ac.uk/id/eprint/41673
PURE UUID: e12f3dbd-a6ba-4b5a-8f6e-f74a0fe6ad64

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Date deposited: 12 Oct 2006
Last modified: 26 Feb 2019 17:31

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