Multipass grating interferometer applied to line narrowing in excimer lasers
Journal Article
·
· Appl. Opt.; (United States)
The line narrowing of excimer lasers is discussed. The theory for an optical two-effect intracavity line narrowing device, the multipass grating interferometer (MGI), is presented. An MGI contains a grating aligned in its second-order Littrow configuration and a mirror aligned parallel to the grating surface reflecting back the beam normal to the grating corresponding to the first-order diffraction. The Littrow grating is doing the coarse line narrowing, and the mirror aligned parallel to the grating has similar line narrowing properties as tilted intracavity Fabry-Perot etalons. An MGI is applied to a KrF laser cavity to achieve a linewidth of 0.03 cm/sup -1/.
- Research Organization:
- Rutherford Appleton Laboratory, Laser Division, Chilton, Didcot, Oxfordshire, OX11 0Qx, U.K.
- OSTI ID:
- 7222091
- Journal Information:
- Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 25:21; ISSN APOPA
- Country of Publication:
- United States
- Language:
- English
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