Photodigm DBR Laser Diodes

High-Power, Single-Frequency Laser Diodes For Precision Applications

The Photodigm family of high-power edge-emitting Distributed Bragg Reflector (DBR) lasers is based on Photodigm’s proprietary single epi growth, first-order DBR architecture. The DBR laser diode is uniquely suited for applications requiring high-power single-frequency performance within a well-defined operating range. Photodigm has worked with its customers to develop a family of devices unmatched in the industry in terms of stability, reliability, and power for precision applications in spectroscopy, non-linear optics, and fiber amplifiers.

The laser is not just a component. It is the heart of a differentiated product.

Performance matters
Details matter
Precision matters
Photodigm delivers

Performance Matters

Details Matter

Precision Matters

Large Continuous Tuning Range

DBR lasers are the architecture of choice where high power within a well-defined operating range is required. The figure on the left shows ranges of hysteresis-free, continuous wavelength tunability with side mode suppression >40dB. Within these regions the typical thermal tuning is 0.7Å/°C (≈25GHz/°C) and typical current tuning is 0.025Å/mA (≈1GHz/mA)

Picosecond Pulse Capability

The figure on the left shows spectral stability of the Photodigm lasers with picosecond pulses.
(Data courtesy of PicoQuant GmbH)

Narrow Line Width to Resolve Spectroscopic Fine Structure

Photodigm’s 780nm and 852nm lasers have exceptionally narrow line widths of less then 1MHz. At the left, a 780nm laser is used to record the hyperfine structure of 87Rb in the F=2 ground state.