638 NM SLM LASER (VBG HP DIODE; FREE-SPACE)
描述
Free-Space high power 638 nm single longitudinal mode laser is designed for industrial Raman spectroscopy. It is typically used to focus the beam into a line-shaped area. The fast axis features fairly good M2, thus good focusability.
Note:
In optical systems with strong back-reflections (e.g. more than 10%), the laser must be protected by using an optical isolator. Typical applications include interferometry, confocal microscopy (especially working with reflective samples), etc.
产品规格
Parameter
Minimum Value
Typical Value
Maximum Value
Central Wavelength, nm
637.9
638
638.1
Longitudinal modes
-
narrow spectrum
-
Spectral line width FWHM, pm
-
20
50
Output power, mW
-
500 1
-
Side-mode suppression ratio (SMSR), dB
40
50
60
Power stability, % (RMS, 8 hrs)
-
0.2 2
1
Power stability, % (peak-to-peak, 8 hrs)
-
2 3
3
Noise, % (RMS, 20 Hz to 20 MHz)
-
0.25 4
0.6
Transversal modes
-
multiple
-
Beam Diameter at Aperture (1/e2), mm
-
0.5 x 2
-
Beam divergence (full angle), mrad
-
1.5 x 2
-
M2 horizontal axis
-
N/A
-
M2 vertical axis
-
1.2
1.5
M2 effective
-
N/A
-
Polarization direction
-
Vertical 5
-
Polarization contrast
1000
1500
2500
Control interface type
-
UART/USB
-
Operation mode
-
APC (CW)
-
Modulation bandwidth, MHz
-
N/A 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
-
Beam height from the base, mm
9.9
10.4
10.9
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 The output power of SLM lasers shall not be tuned and SLM performance is not guaranteed at power ratings other than factory preset. However, the power setting capability is not disabled. External attenuators are recommended instead.
2 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.
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 Noise level is measured with a fast photodiode connected to an oscilloscope. The overall system bandwidth is from 2 kHz to 20 MHz.
5 For lasers without integrated optical isolators.
6 SLM lasers shall not be modulated - use external modulators instead.
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
Typical spectrum of 0638 nm diode laser. Measured with 20 pm resolution.
Typical Near Field
Typical Far Field
Drawing
The key dimensions of a free-space MatchBox.
商品属性 [波长] 638nm [输出类型] VBG HP DIODE; FREE-SPACE [功率] 500mW