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VCSEL lasers for atomic clocks (795nm, 850nm, 894nm)
Atomic clock specific laser (795nm, 850nm, 894nm) with high precision
Product details
Atomic clock specific lasers (795nm, 850nm, 894nm)
High precision, high reliability atomic clock with 795nm, 850nm, 894nm vertical cavity surface emitting lasers (VCSEL lasers)!
Keywords: atomic clock, atomic clock，VCSEL，795nm VCSEL，850nm，VCSEL，894nm VCSEL Vertical cavity surface emitting laser, vertical cavity surface laser for atomic clock, rubidium atomic clock, cesium atomic clock, magnetometer, frequency standard
VIXAR Corporation 795nm, 850nm, 894nm from the United StatesVertical cavity surface emitting lasers (VCSEL) can achieve transverse mode output, suitable for rubidium atomic clocks, cesium atomic clocks, frequency standards, magnetometers, and other directions. Good reliability, available in various packaging options, including TO-4, TO-5，PLCC-2， Bare chips, etc. It can be equipped with TEC, making it a high-quality choice for instruments such as atomic clocks.
Parameter |
Symbol |
Units |
Minimum |
Typical |
Maximum |
Notes |
Maximum DC current (CW) |
mA |
-- |
-- |
2 |
To remain single-mode |
|
Threshold current |
Ith |
mA |
0.6 |
0.75 |
0.9 |
|
Operating voltage |
Vf |
Volts |
-- |
2.1 |
3 |
|
Series resistance (VCSEL) |
Rs |
Ohms |
150 |
175 |
300 |
|
Slope efficiency |
SE |
mW/mA |
-- |
0.12 |
-- |
|
Optical output power |
Lop |
mW |
0.06 |
0.1 |
0.17 |
In single mode. T=85°C |
Optical output power |
Lop |
mW |
0.1 |
-- |
0.25 |
In single mode. T=25°C |
Optical output power |
Lop |
mW |
0.04 |
0.08 |
0.16 |
In single mode. T=95°C |
Reverse breakdown voltage |
V |
10 |
-- |
-- |
Ir ≤ 1nA |
|
Operating wavelength |
λop |
nm |
794.5 |
795 |
795.5 |
|
Side Mode Suppression Ratio |
SMSR |
dB |
20 |
-- |
-- |
Unmodulated. |
Spectral line width |
Δλ |
MHz |
-- |
-- |
100 |
Unmodulated. |
Polarization extinction ratio |
PER |
dB |
16 |
-- |
-- |
0.25mA < if="">< 2ma="" (note=""> |
Beam divergence 1/e2 |
deg |
-- |
15 |
-- |
Whole angle |
|
Beam divergence FWHM |
FWHM |
deg |
-- |
9 |
-- |
Whole angle |
Wavelength current coefficient |
nm/mA |
-- |
0.42 |
0.6 |
||
Wavelength temp. coefficient |
nm/°C |
-- |
0.055 |
0.061 |
||
Rise time |
ps |
-- |
-- |
100 |
20%-80% |
|
Fall time |
ps |
-- |
-- |
100 |
20%-80% |
|
Modulation bandwidth (-3 dB) |
BW |
GHz |
4 |
-- |
-- |
|
ESD Survival |
V |
1000 |
-- |
-- |
(Notes 3, 5) |
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