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Pulsed Ti:sapphire laser seeded off the gain peak
Applied Optics
|November 19, 2010
Summary
A tunable birefringent filter enables seeded operation of pulsed Ti:sapphire lasers outside their gain peak. Seeded laser output shows a reciprocal dependence on seed power.
Area of Science:
- Laser physics
- Optical engineering
Background:
- Pulsed Ti:sapphire lasers are crucial for tunable wavelength generation.
- Seeding Ti:sapphire lasers can extend their operational range but requires specialized components.
Purpose of the Study:
- To develop and characterize a tunable filter for seeded Ti:sapphire laser operation.
- To investigate the performance of a seeded Ti:sapphire laser system.
Main Methods:
- Utilized an external-cavity diode laser to seed a pulsed Ti:sapphire laser (839-860 nm).
- Implemented a tunable, wide-field-of-view birefringent filter within the laser cavity.
- Measured the ratio of unseeded to seeded output power against varying seed power levels.
Main Results:
- Demonstrated successful seeded operation of the Ti:sapphire laser off its gain peak using the birefringent filter.
- Observed an approximately reciprocal relationship between seed power and the ratio of unseeded to seeded output.
Conclusions:
- The developed birefringent filter is effective for seeded operation of Ti:sapphire lasers in non-optimal wavelength ranges.
- Seed power significantly influences the efficiency of seeded laser operation.
