Pulsed laser 30 and 50 watts

The Biophysica lasers are Picopulse 1 watt and Nanopulse 50 watt

Picopulse Systems are diode lasers emitting very short optical pulses with ultra-short pulse widths down to 12 picoseconds (0.012 nanoseconds), depending on the laser diode used. The standard system consists of a digital electrical pulse generator EIG and an optical head with a laser diode and a collimating optics (paralleling optics, single mode fiber output or multimode fiber output versions are also available). The laser diodes of the various models are pre-configured to emit on a fixed wavelength within a spectral range between 375 nm and 1670 nm, i.e. from ultraviolet to infrared, based on all commercial available diode wavelengths. Typical peak powers are in the range of 25 mW to more than 1000 mW, depending on the laser diode used. The jitter between electrical trigger and optical pulse is about 4 ps. Special wavelengths or specifications are – if technically possible – available on request.

Drivers have 1 MHz or 100 MHz repetition rate

Wavelengths available – 375nm, 405nm, 440nm, 473nm, 635nm, 670nm, 780nm, 830nm, 850nm, 905nm, 1060nm,
1300nm and 1550 nm

Applications include:

o Time correlated single photon counting
o Fluorescence lifetime imaging
o Seed laser for amplifiers

Nanopulse Systems are diode lasers emitting very short optical pulses with pulse widths down to 7 nanoseconds (7000 picoseconds): 


diode module  and heat sink 
The combined high power laser driver and Thermo Electric Cooler (TEC) controller  – a high performance driver for high power diode laser modules, optimized for the best performance in industrial applications and for the use in research and development laboratories. It delivers an output current up to 50 A and a voltage up to 3 or 6 V and is designed for cw and pulsed operation with a rise time of 100 µs. It already includes the thermo-electrical temperature controller for active temperature stabilization and regulation of the used diode laser module. 

The air forced high power laser diode heat sink, designed for heat loads up to 120, 80, 60 or 40 Watt (depending from the needed heat load for the used diode laser module). The heat sink includes the metal block, a temperature sensor, the Peltier cooling element (TEC) and a fan for the heat dissipation. 

The diode laser module. For most of the pigtailed modules a visible (red) pilot (aiming) diode laser can be included in the diode laser module. 

Features laser diode modules with output power up to 50 W for the fiber coupled versions 

BioMod 808 nanometre wavelength at power of 30 Watts
Expected lifetime (constant current) > 10,000 hrs
Parameters BioMod808/30/…
operation mode cw
max. optical output power (W) 30
center wavelength at 25°C (nm) 808
center wavelength variation at 25°C (nm) 3
typical spectral bandwidth FWHM (nm) 3
maximum spectral bandwidth FWHM (nm) 4
typical operation current (A) 43
maximum operation current (A) 46
typical threshold current (A) 9
maximum threshold current (A) 11
typical efficiency (W/A) 0.9
minimum efficiency (W/A) 0.8
maximum operating voltage (V) 1.8
structure

LOC

prepared for fiber coupling
(SMA 905 connector )
400 µm (NA=0.22) or 600 µm (NA=0.22)
temperature sensor PT 100 and PT 1000
power monitor Si-Pin Siemens SFH 229
TEC (cold side at max. 30°C in series)
max. cooling power
max. current
Voltage

2 x 173 W = 346 W
11.4 A
2 x 24.7 V = 49.4 V
option: integrated pilot laser diode 635 nm, <1 mW, 4.5-6 V dc, ca. 50 mA
operation conditions Non-condensing atmosphere
Prices for complete systems generally commence around $12,000 US

 

This page last updated September 22, 2005