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FM mode-locked, laser-diode-pumped La(1-x)Nd(x)MgAl(11)O(19) laser.

D W Hughes, A Majdabadi, J R Barr

|September 22, 2010

Summary

This summary is machine-generated.

Researchers operated a new laser using neodymium-doped lanthanum magnesium hexaaluminate crystals. This laser produced ultrashort pulses at a 230 MHz repetition rate, demonstrating potential for advanced optical applications.

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Area of Science:

Laser physics
Solid-state lasers
Materials science

Background:

Neodymium-doped lasers are crucial for various optical applications.
Mode-locked lasers generate ultrashort pulses essential for high-speed communications and research.
Developing efficient and stable mode-locked lasers is an ongoing area of research.

Purpose of the Study:

To report the operation of a laser diode-pumped La(1-x)Nd(x)MgAl(11)O(19) laser.
To achieve mode-locked operation using an electro-optic phase modulator.
To characterize the output pulses and explore frequency modulation (FM) capabilities.

Main Methods:

Utilized a laser diode-pumped La(1-x)Nd(x)MgAl(11)O(19) crystal.
Employed an electro-optic phase modulator for mode-locking.
Pumped the laser with a 500-mW broad-stripe laser diode.
Measured pulse duration, repetition rate, and output power.

Main Results:

Achieved a repetition rate of 230 MHz.
Obtained an average output power of 50 mW.
Generated transform-limited pulses with a duration of 14 picoseconds.
Demonstrated FM operation with bandwidths up to 440 GHz.

Conclusions:

The La(1-x)Nd(x)MgAl(11)O(19) laser is effectively mode-locked using an electro-optic modulator.
The laser system produces high-quality ultrashort pulses suitable for demanding applications.
The demonstrated FM operation broadens the potential applications in optical communications and spectroscopy.