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Updated: Jun 19, 2026

Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Published on: July 17, 2016

Electronically tuned Ti:sapphire laser.

S Wada, K Akagawa, H Tashiro

|October 31, 2009

Summary

This summary is machine-generated.

Researchers used a birefringent acousto-optic crystal to tune a titanium-sapphire laser. Optical correction extended the tuning range to over 100 nm, enabling fast, electronic wavelength access.

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Area of Science:

Optics and Photonics
Laser Physics
Materials Science

Background:

Titanium-sapphire lasers are tunable lasers widely used in scientific research.
Acousto-optic tunable filters (AOTFs) offer electronic wavelength selection capabilities.
Birefringent crystals are essential components in acousto-optic devices.

Purpose of the Study:

To apply a birefringent acousto-optic crystal for wavelength tuning of a Ti:sapphire laser.
To overcome the tuning range limitations imposed by wavelength-dependent beam deflection.
To demonstrate fast and random access of lasing wavelengths via electronic tuning.

Main Methods:

Utilized a birefringent acousto-optic crystal within a Ti:sapphire laser cavity.
Implemented an optical correction method to counteract beam deflection issues.

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Operated the laser in a pulsed mode at 10 Hz for tuning experiments.

Main Results:

Achieved a continuous tuning range of 12 nm, initially limited by beam deflection.
Extended the laser's tuning range to over 100 nm through optical correction.
Demonstrated rapid, electronically controlled, random access to specific lasing wavelengths.

Conclusions:

Birefringent acousto-optic crystals, when combined with optical correction, significantly enhance Ti:sapphire laser tuning capabilities.
This method enables broad, electronically controlled wavelength selection, crucial for dynamic spectroscopic applications.
The demonstrated fast electronic tuning opens possibilities for advanced laser systems requiring agile wavelength control.