Form 9.B Project Summary



Proposal Number:


Project Title:

High Power 0.79um Surface Emitting

Laser Arrays

Technical Abstract (Limit 200 words)

High power, low cost laser diode arrays are needed

to fill many applications including solid state diode

pumps, industrial fiber delivered laser cutting and

scribing as well as many medical and NASA

applications. The usefulness of high power

(>150mW) edge emitting lasers is limited by many

unfavorable characteristics including astigmatism,

highly diverging or spatially incoherent outputs,

poor temperature performance and high production

costs. Princeton Electronic Systems, inc., (PES)

proposes to develop a novel laser architecture

based on the Vertical Cavity Surface Emitting

Laser (VCSEL) technology for pumping at 0.79um

to provide unparalleled performance including high

power (100mW-10W+ CW, 2-1000W+ pulsed),

temperature insensitive operation (threshold

current variation of ± ~1mA over >150°C

temperature range expected), high temperature

operation (to 150°C+), scalability for higher output

powers (10W-100W+ CW potentially achievable)

and low production costs (a 500umx500um array

producing 10W CW can be manufactured for

roughly one dollar). By the end of Phase I, PES will

obtain optimized 0.79um VCSEL design for high

power, low divergence operation. By the end of

Phase II, PES will deliver high power (to10W CW,

1000W+ pulsed) VCSELs for commercial and

NASA applications.

Potential Commercial Applications (Limit 200 words)

High power VCSEL arrays exhibiting narrow, single

lobed outputs would find many applications

including diode pumps for Ho:YAG, Tm:LuAG etc.

Ho and/or Tm doped solid state lasers, sources for

fiber delivered applications which require a small

heat affected zone and high power sources for a

broad range of medical applications.

Name and Address of Principal Investigator (Name,

Organization Name, Mail Address, City/State/Zip)

Dr. Kaiyan Zhang

Princeton Electronic Systems, Inc.

196 Princeton-Hightstown Road

Cranbury , NJ 08512

Name and Address of Offeror (Firm Name, Mail Address,


Dr. Chuni L. Ghosh

Princeton Electronic Systems, Inc.

196 Princeton-Hightstown Road

Cranbury , NJ 08512