974 - 980 nm High Power Pump Lasers
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Features
Applications
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General Description
The EM4 line of single mode, cooled 980 nm pump lasers deliver up to 750mW of fiber-coupled power. The modules are packaged using the unique, patent pending technology Uniline™ for permanent fiber alignment. Uniline™ provides superior end-of-life optical and electrical performance, achieved by maintaining a highly stable, all-axis alignment lock between the laser chip and the tip of the single-mode fiber.
The hermetically sealed 14 pin butterfly package is available with a fiber Bragg grating and includes thermoelectric cooler, thermistor, monitor photodiode and UniDry™ getter. The fiber Bragg grating precisely locks the center wavelength over extended power and temperature range. Center wavelengths in the range of 976 nm to 980 nm are available with tight wavelength control. EM4’s Uniline™ family of pump lasers are qualified to meet the requirements outlined in Telcordia GR-468-CORE.
Optical And Electrical Characteristics
TOP=25°C, continous wave and beginning of life unless otherwise specified.
|
Parameter |
Sym. |
Condition |
Min |
Typ. |
Max |
Unit |
|
Operating Chip Temperature |
TCHIP |
|
20 |
|
35 |
°C |
|
Threshold Current |
ITH |
|
|
|
55 |
mA |
|
Laser Drive Current |
IOP |
|
See ordering information |
mA |
||
|
Laser Forward Voltage |
VF |
I=IMAX |
|
|
2.7 |
V |
|
KINK Power |
POP |
AC1401-0750-YYYY-ZZ, I=IKINK |
750 |
|
|
mW |
|
AC1401-0600-YYYY-ZZ, I=IKINK |
600 |
|
|
|||
|
AC1401-0500-YYYY-ZZ, I=IKINK |
500 |
|
|
|||
|
AC1401-0300-YYYY-ZZ, I=IKINK |
300 |
|
|
|||
|
Center Wavelength |
λC |
P=POP |
See ordering information |
nm |
||
|
Wavelength Tolerance |
Δ λ |
With Fiber Bragg Grating |
-1 |
|
1 |
nm |
|
Without Fiber Bragg Grating |
-5 |
|
5 |
|||
|
Spectral Shift With Temperature |
Δ λ/ΔT |
With Fiber Bragg Grating |
|
|
0.02 |
nm/°C |
|
Without Fiber Bragg Grating |
|
0.35 |
|
|||
|
Power In Band |
|
@λC±1nm, P>50mW |
90 |
|
|
% |
|
Monitor Photo Diode Current |
IPD |
P=POP |
0.1 |
|
6.0 |
mA |
|
Monitor Photo Diode Dark Current |
ID |
|
|
|
100 |
nA |
|
TEC Current |
|
ΔT=25°C, P=POP |
|
|
3.5 |
A |
|
TEC Voltage |
|
ΔT=25°C, P=POP |
|
|
3.5 |
V |
|
Thermistor Resistance |
RTH |
T=25°C |
9500 |
10000 |
10500 |
Ω |
|
Thermistor β coefficient |
β |
0 / 50°C |
|
3892 |
|
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| USA and Rest of World | Europe |
| sales@em4inc.com | europe@em4inc.com |
| Tel +1 781 275 7501 | Tel +44 115 714 1064 |