785 NM SLM LASER (FBG; SM FIBER)

Item Code:
0785L-27A-NI-AT-NF
Product status:
Preliminary Product specifications are subject to change, delivery time is less predictable.
Availability:

Description
FBG stabilized 785 nm SLM lasers were develped for confocal Raman spectroscopy. It provides spatially filtered TEM00 beam and narrow spectrum with superior side mode suppression ratio of ~50dB. Fiber Bragg Grating based 785 nm laser has many advantages over traditional VBG based and later fiber-coupled external cavity lasers. First of all, it provides better beam quality and focusability, power tuning and callibration (for stabilized central wavelength, but not for true SLM operation) and considerable cost savings.
Integrated Optics is the first company to commercialize visible FBG stabilized lasers for spectroscopy applications.
Specifications
Last edited on:  23 September 2019
Parameter Minimum Value Typical Value Maximum Value
 Central Wavelength, nm 784.9 785 785.1
 Longitudinal modes - Single -
 Spectral line width FWHM, pm - 0.1 1 1
 Output power, mW 5 80 2 90
 Side-mode suppression ratio (SMSR), dB 40 50 60
 Power stability, % (RMS, 8 hrs) - 0.2 3 1
 Power stability, % (peak-to-peak, 8 hrs) - 2 4 3
 Noise, % (RMS, 20 Hz to 20 MHz) - 0.25 5 0.6
 Transversal modes - TEM00 -
 Polarization direction - Random 5.3
 Control interface type - UART 0 -
 Operation mode - APC (CW) -
 Modulation bandwidth, MHz - optional 6 -
 Input voltage, VDC 4.8 5 5.3
 External power supply requirement - +5 V DC, 1.5 A -
 Dimensions, mm - 50 x 30 x 18 7 -
 Fiber Length, m 0.95 1 1.1
 Heat-sinking requirement, °C/W - 1 -
 Optimum heatsink temperature, °C 15 20 30
 Warm up time, mins (cold start) 0.2 1 2
 Temperature stabilization - Yes -
 Overheat protection - Yes -
 Storage temperature, °C (non-condensing) -10 - 50
 Net weight, kg 0.1 0.12 0.14
 Max. power consumption, W 0.4 2 10
 Warranty, months (op. hrs) - 14 (10000) 8 -
 RoHS - Yes -
 CE compliance - - General Product Safety Directive (GPSD) 2001/95/EC
- (EMC) Directive 2004/108/EC
-
 Laser Safety Class - 3B -
 OEM lasers are not compliant with - IEC60825-1:2014 (compliant using additional accessories) -
 Country of origin - Lithuania -
1 Measured with a scanning Fabry-Perot interferometer having 7.5 Mhz resolution, with scanning frequency of about 10 Hz. Interferometer testing is not provided for each laser being manufactured, the standard test is OSA measurement with 10-20 pm resolution instead.
2 Output power of FBG lasers can be changed with fairly good repeatability of spectrum.
3 The long term power test is carried out at constant laser body temperature (+/-0.1 ‎°C) using an optical power meter with an input bandwidth of 10 Hz. The actual measurement rate has a period of about 20 seconds to 1 minute.
4 The long term power test is carried out at constant laser body temperature (+/-0.1 ‎°C) using an optical power meter with an input bandwidth of 10 Hz. The actual measurement rate has a period of about 20 seconds to 1 minute.
5 Noise level is measured with a fast photodiode connected to an oscilloscope. The overall system bandwidth is from 2 kHz to 20 MHz.
0 Break-out-boxes AM-C8 and AM-H10 can be used for conversion of UART communication to either USB or RS232.
6 TTL digital modulation up to 10 MHz.
7 Excluding control interface pins and an output window/fiber assembly.
8 Whichever occurs first. The laser has an integrated operational hours counter.
Note: Product specifications are subject to change without prior notice to improve reliability, function or design or otherwise.
Typical spectrum

Spectrum of 785 NM SLM LASER (FBG; SM FIBER)
Typical spectrum of 0785 nm diode laser. Measured with 20 pm resolution.
Typical Near Field

Near field beam profile of 785 NM SLM LASER (FBG; SM FIBER)
Drawing

Drawing of 785 NM SLM LASER (FBG; SM FIBER)
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