John Spencer

Recent Posts

Photodigm DBR Lasers: Critical Components in Coherent Automotive LIDAR

by John Spencer on Tue, Mar 28, 2017 @ 02:13 PM

The successful development and implementation of autonomous vehicles will require significant advancement of sensor technology. Automotive robotics...

The Opportunity in DBR Lasers

by John Spencer on Sun, Jan 08, 2017 @ 12:00 AM

 Laser devices are an enabling technology component of a complex system.  Buried deep inside complex industrial and scientific instruments, the laser...

Photodigm Lasers in the Supply Chain

by John Spencer on Wed, Jul 03, 2013 @ 02:42 PM

Photodigm produces laser diodes in the technologically important near IR band, which covers multiple wavelengths of industrial and scientific...

"Real Men Have Fabs" works for semiconductor lasers too

by John Spencer on Mon, Oct 22, 2012 @ 03:11 PM

This provacative and iconic statement made by AMD founder Jerry Sanders in the 1980's, was intended to drive a stake in the ground about competitive...

Wavelength Tuning in Distributed Bragg Reflector Lasers

by John Spencer on Wed, Sep 12, 2012 @ 02:06 PM

Deterministic wavelength tunability is a key advantage of Photodigm's monolithic DBR lasers. Applications requiring the precision of distributed...

Second Harmonic Generation with DBR Lasers

by John Spencer on Mon, Aug 20, 2012 @ 02:56 PM

Tunable Laser Diodes in the Undergraduate Atomic Physics Lab

by John Spencer on Wed, Jul 25, 2012 @ 06:13 PM

Lasers are a vital research component in any number of branches of physics. From quantum physics’ quest to better understand and utilize...

Precision DBR Lasers -- Products, not "Pearls"

by John Spencer on Thu, May 03, 2012 @ 05:24 PM

From the Photodigm mission statement:

Applications of Diffraction Limited Single Frequency DBR Lasers

by John Spencer on Mon, Oct 03, 2011 @ 09:50 AM

 In its January 2011 review and forecast of the laser industry, Laser Focus World projected worldwide commercial laser revenues of $7.05 billion, of...

Optical Feedback in Laser Packages

by John Spencer on Thu, Sep 01, 2011 @ 09:09 AM

Our customers specify Photodigm precision lasers for many reasons, including their narrow linewidth, tunability, spectroscopy-certified frequency,...