Mendocino 780-nm Fiber Laser

Calmar Laser

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SUNNYVALE, Calif., March 4, 2011 — Calmar Laser Inc. has added a high-power 780-nm femtosecond fiber laser to its Mendocino family.

The Mendocino model FPL-05RFF0 offers >500 mW of output power and a pulse width of 150 fs in an ultracompact laser pointer-style package measuring 3 × 3 × 13.5 cm. It produces a 50-MHz train of femtosecond pulses that have a near pedestal-free shape and good pulse-to-pulse stability. The output beam has roundness better than 90% and M² < 1.1, enabling optimal spatial resolution when used in conjunction with microscope systems. The laser is air-cooled and does not require a chiller.

Pulse energy is up to 10 nJ, and pulse widths are down to 0.15 ps. The second-harmonic-generation passively mode-locked laser operates in the C-band and offers linearly polarized and radio-frequency synchronization output, and low timing jitter of 60 fs. Spectral width is ~10 nm, and operating temperature is from 15 to 35 °C. Front panel control knobs enable adjustment of output power.

Designed for OEM and scientific biophotonics applications, the turnkey device is nearly 300 times smaller than comparable-power femtosecond Ti:sapphire laser systems, according to the company. The all-fiber architecture provides enhanced reliability, improved stability and reduced cost of ownership. The compact head facilitates integration into microscope systems and bioinstrumentation.

Applications include multiphoton microscopy, biomedical imaging, nonlinear materials characterization, terahertz radiation, micromachining, optical metrology and free-space communication.

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Published: March 2011