Photodigm is the world’s leading specialist manufacturer of laser diodes for precision applications. Our monolithic laser diode products deliver unsurpassed performance for atom optics, non-linear optics, precision instruments, and high speed pulsed operation where single frequency operation is critical.  The degree of performance in our products can only be achieved by focusing on our customers, and then projecting their requirements onto the semiconductor in our own wafer fabrication facility.  

Since 2000 we have specialized in Distributed Bragg Reflector (DBR) technology. Our proprietary tool set and extensive know-how in laser design and fab has resulted in industry-leading performance.  Our monolithic design incorporates passive gratings and single growth epi to achieve the industry's highest power, reliability, and overall performance.  They are available certified to precise wavelengths  for use in the most demanding applications in spectroscopy, metrology, and analysis.  .  

Building on our expertise in precision lasers, we expanded our product line in 2008 though the introduction of our Versatile Laser Test System for semi-active laser seekers.  In 2012 we are introducing our newest model, the LTS 1200, a fully computer controlled system delivering up to 300 watt pulses for factory floor testing.

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 products unmatched in the industry in terms of stability, reliability, and power for precision applications in spectroscopy, atomic physics, non-linear optics, and fiber amplifiers.

 

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

Performance Matters

Precision Matters

Detail Matters

Photodigm delivers

Performance Matters

Single frequency performance of a Photodigm DBR laser over a wide operating power range.  

 

At long last, researchers in the fields of cold atom physics, quantum computing, and  atomic spectroscopy have available a stable source of highly reliable, high power single frequency lasers to support their work.

 

The graphic below shows the unique design of the Photodigm DBR laser. Single growth epi, combined with precision fabrication of ridges and passive gratings result in unmated power, reliability and stability for high power single frequency applications.  

Details matter

Sweating the details is an essential part of success at wafer fab.  That part of the job cannot be delegated or outsourced. Photodigm is a primary manufacturer of semiconductor lasers, with a proprietary design methodology, process technology, and wafer fab tool set.  

The Photodigm laser fab in Richardson, Texas. Our proprietary tool set includes several items that provide us with a unique capability that ensures leading edge performance of our products.  

 

Precision Matters

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

Photodigm DBR lasers exhibit a large continuous tuning range.

 

This figure shows the spectral stability of a Photodigm 1064 nm DBR laser with picosecond pulses. Data courtesy of PicoQuant GmbH.  

Photodigm's Spectroscopy Certified lasers have exceptionally narrow linewidths of less an 1 MHz. The curve above shows the hyperfine structure of Rb-87 in the F=2 ground state, resolved with a current-tuned Photodigm DBR laser.

 

Photodigm consistently delivers its Spectroscopy Certified (TM) lasers to leading customers worldwide. These devices are available in a wide range of wavelengths, powers, and package configurations to support OEM and research customers.