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DL100-785-FC - Tunable Diode Laser for Raman Spectroscopy (45mW)




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Due to its selectivity, Raman spectroscopy offers a large set of applications for qualitative and quantitative analysis. The increasing availability of modular optical spectrometers with matching Raman probes provides an unknown flexibility for the development of new applications for Raman spectroscopy.

The DL100-785-FC is an excellent Raman source for 785nm excitation. It features a high wavelength stability due to the external cavity. The external cavity is formed by the end of the laser diode and the surface of the spectral selective grating. The typical power at the fiberoptic output is about 45mW. The fiberoptic output can be coupled directly to any Raman probe via the FC-PC or FC-APC fiberoptic connector.

The core of the system is the laser unit located in the small box on the left of the picture. The laser unit accommodates the whole optical bench with the mounted laser diode, an active temperature control to increase the thermal stability of the diode laser resonator and a piezo actuator for precise tuning of the wavelength by tilting the grating. The laser diode itself can be changed easily by replacing the laser diode holder without dismantling the set-up. The control and supply units on the right side of the picture are designed as modular plug-ins. This way, they can be optimized for the respective application.

The DL100-785-FC is prerequisite to couple with any Raman spectrometer, e. g. the CDI Raman 785 nm.

For further questions, please do not hesitate to contact us - we will be pleased to consult you!




SpecificationDL100-785-FC
Laser wavelength785nm
Tuning range 5 nm typical
Wavelength tuning by tilting a spectral sensitive grating
with a low voltage piezo actuator
Short term linewidth of the laser ~ 1 MHz
Optical power45mW at the fiberoptic output
Fiberoptic outputFC-APV or FC-PC
typically into 50µm to 100µm multimode fiber
GjgImax = 6A, Umax = 8.6V, Qmax = 28 W
Indicatorslaser-on indicator (red/yellow LED)
indicator for operation of temperature control (green LED)
Electrical in/outputs (laser head) SubD9-female connector for laser and photodiode
SubD9-male connector for thermoelectric element and temperature sensor AD 590
BNC-socket for grating control
SMC-socket for fast external current modulation via a Bias-T (100 kHz up to 1 GHz)
DimensionsLaser unit: (WHD) 114 mm x 80 mm x 80 mm
Control unit: (WHD; approx.) 250 mm x 150 mm x 200 mm
WeightLaser unit: approximately 2 kg
Control unit: approximately 7 kg
Power supply (control unit)Europe standard mains voltage: 230 VAC
US standard mains voltage: 215 VAC



Last change 08/15/2007 09:34 AM
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