Title:
PULSE LASER RESONATOR
Document Type and Number:
WIPO Patent Application WO2002023683
Kind Code:
A3
Abstract:
A laser (2) includes a gain medium (10), a switch element (12) and a pulse controller (14). In one embodiment laser light of differing polarisations pass along respective paths and a pulsed laser output is generated via an electro-optical element. In another embodiment light of differing polarisations passes in differing directions through a cylical path. The invention can make use of a prism-shaped polariser having a polarisation selection face and two further faces. Yet further initial pulses can be controlled to reduce energy for example by progressively increasing the period or amplitude of successive pulses. As a result an efficient and high power laser apparatus is realised.
Inventors:
PALMER JASON (GB)
KLUG DAVID R (GB)
MERCER IAN P (GB)
ALLWOOD DANIEL A (GB)
KLUG DAVID R (GB)
MERCER IAN P (GB)
ALLWOOD DANIEL A (GB)
Application Number:
PCT/GB2001/004118
Publication Date:
June 20, 2002
Filing Date:
September 13, 2001
Export Citation:
Assignee:
POWERLASE LTD (GB)
PALMER JASON (GB)
KLUG DAVID R (GB)
MERCER IAN P (GB)
ALLWOOD DANIEL A (GB)
PALMER JASON (GB)
KLUG DAVID R (GB)
MERCER IAN P (GB)
ALLWOOD DANIEL A (GB)
International Classes:
H01S3/082; H01S3/081; H01S3/083; H01S3/107; H01S3/115; H01S3/23; (IPC1-7): H01S3/11; G02B5/30
Foreign References:
| US4841528A | 1989-06-20 | |||
| US3564454A | 1971-02-16 | |||
| EP0370620A2 | 1990-05-30 | |||
| US4380073A | 1983-04-12 | |||
| US3928818A | 1975-12-23 |
Other References:
GOODNO G D ET AL: "Investigation of beta -BaB/sub 2/O/sub 4/ as a Q switch for high power applications", APPLIED PHYSICS LETTERS, 27 MARCH 1995, USA, vol. 66, no. 13, pages 1575 - 1577, XP002184817, ISSN: 0003-6951
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