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Birefringent Filter

Lasers | Photonics Handbook®

Lasers | Photonics Handbook®

…CW laser involves including an extra filtering element in the cavity - usually a birefringent (or Lyot) filter. A birefringent filter does two things: It
narrows the bandwidth and, by rotating the filter, allows smooth tuning. This same type of filter is also used as a factory-set tool to…

Pulse Compressors

Pulse Compressors

…for the Mira series and shortens the output pulse duration from the Mira to approximately 70 fs. It consists of a prism assembly head, a birefringent filter (BRF), and a mirror-based starter galvanometer. The new BRF and starter replace the existing BRF and starter (when required) in the Mira head.…

Mira brochure

Mira brochure

…control
Pump focus lens
Cavity mirror M4
900-P Gires-Tournois
with ß-lock
GVD prism P1
900-P fold mirror M-8
900-F high reflector M7
Birefringent filter
tuning element
Ti:S crystal mount
The
inside
story of productive work.

Sapphire-Advantage-Low-Noise.pdf

Sapphire-Advantage-Low-Noise.pdf

…nm. In Sapphire lasers, the lasing wavelength is finely tuned and narrowed to a handful of longitudinal modes by means of an intracavity birefringent filter (BRF). Intracavity frequency doubling efficiently then converts the near-IR fundamental to a wavelength in the visible and beyond, providing…

COHR RLScatalog 2017revA web.pdf

COHR RLScatalog 2017revA web.pdf


The SPO-I compresses the pulses of the Mira-900
and Mira-HP oscillators. It consists of an external
prism assembly head, a birefringent filter (BRF), and
a mirror-based starter galvanometer - all added to
the Mira-900 or Mira-HP laser head.
The SPO-II is a pulse…

2016-Ultrafast-Laser-Systems-Catalog.pdf

2016-Ultrafast-Laser-Systems-Catalog.pdf


The SPO-I compresses the pulses of the Mira-900
and Mira-HP oscillators. It consists of an external
prism assembly head, a birefringent filter (BRF), and
a mirror-based starter galvanometer - all added to
the Mira-900 or Mira-HP laser head.
The SPO-II is a pulse…

COHR WP OPSL Wavelength Flexibility final 4.17.18.pdf

COHR WP OPSL Wavelength Flexibility final 4.17.18.pdf

…for selecting laser diodes
in a narrow wavelength window. The birefringent filter acts as a narrowband intracavity filter
whose transmission wavelength is factory set by rotation about its normal axis. This filter is
used to limit the emission to a narrowband - a single longitudinal…

Verdi-G-Series-Lasers-Technology-Proven-in-the-Most-Noise-Sensitive-Applications.pdf

Verdi-G-Series-Lasers-Technology-Proven-in-the-Most-Noise-Sensitive-Applications.pdf

…I (800) 527-3786 I (408) 764-4983 2
narrowed to a handful of longitudinal modes centered on
532 nm by means of an intracavity birefringent filter (BRF).
Relaxed Pumping Geometry - Simpler and More
Reliable Laser
Compared to DPSS lasers, OPSLs, such as the Verdi
G10,…