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Part NO. : | DCFBG-series |
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930nm medium-power wide-spectrum SLD
Very wide, 70 nm FWHM optical spectrum
Short coherence length
Negligible residual Fabry-Perot modulation depth
Application
fiberoptic sensors
Bragg grating sensors
optical coherence tomography
optical measurements
Packages
fiber coupled – Butterfly, DIL
free space – TOW
Additional & customized
- PD monitors
- FC/APC terminated pigtails
- SM or PM pigtails (polarized or pseudo-depolarized output emission ex PM fiber)
Specification
Parameter |
Min |
Typ |
Max |
Output power, SM fiber pigtail, emitter @ +25 °C, mW |
1.0 |
1.5 |
- |
Free space output power*, in a cone N.A.=0.71, emitter @ +25 °C, mW |
3.5 |
5.0 |
- |
Forward current**, mA |
- |
150 |
250 |
Forward voltage, V |
- |
2.0 |
2.5 |
Central wavelength, nm |
910 |
935 |
950 |
Spectrum width, FWHM, nm |
50 |
70 |
- |
Residual spectral modulation depth, % |
- |
- |
2.0 |
Secondary coherence subpeaks, dB (10 log) |
- |
-25 |
-20 |
Spectral Flatness***, dB |
- |
1.0 |
2.0 |
Slow / fast polarization ratio (PM "polarized" modules)****, dB |
5 |
10 |
- |
Operating temperature*****, °C |
-55 |
- |
+80 |
Cooler current, A |
- |
- |
1.2 |
Cooler voltage, V |
- |
- |
3.5 |
current is specially adjusted to get the highest output power with equal
**intensity of spectral humps; different for different modules;
***describes spectral intensity dropout between spectral humps
****HP1-rated butterfly-packaged SLDs; more details upon request
PERFORMANCE EXAMPLES
SLD-47(a)-MP-(c)-(d)-(e),
where:(a) – 0 (free space) or 1 (fiber pigtailed), (c) – package type,
(d) – SM or PM (fiber coupled modules), (e) – PD (if PD monitor is required).
Example: SLD-471-MP-DIL-SM-PD.
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