SOM Series High-speed fiber modulator/shutter
This turn-key fiber-coupled module has a switching speed <1 ns and operates as a lossless high dynamic range amplitude modulator, a high-speed optical isolation switch or a full-range variable optical attenuator (VOA).
Key features
• SOM (Semicondustor Optical Modulators) are a smart alternative to AOM (Acousto optic Modulators), EOM (Electro Optics Modulators) or even direct diode modulation. It is a lossless, low noise, high speed, high dynamic range, high extinction ratio and highly polarizing solution working from 750 to 1700 nm.
• SOM maintain the narrow optical linewidth of an input CW signal while producing very short pulses.
• Min. pulse duration: <1.5 ns, timing Jitter down to 8 ps, up to 250 MHz repetition rate.
• SOM are SOA-based Amplitude Modulator. The SOA (Semiconductor Optical Amplifier) offer proven reliability and performance. Current/temperature control circuits and safety limits are pre-set and optimized to ensure the highest level of performance in pulsed mode.
• Wavelength from 750 to 1650 nm needs to be precised at the order (see table last page).
• All versions can be controlled either through USB link or through an analog signals.
• Most versions show fast delivery for immediate customer use.
• 1 version also includes 3 pulse-delay-generators for external synchronizations (SOM-Shape).
SOM-std GUI Interface
Specifications
Version:
SOM-std
SOM-HPP
(High Pulse
Performance)
SOM-shape
(Pulse shaping)
Wavelength (nm)
Any wavelength to be chosen between 700 and 1650 nm (see wavelength table next page)
Optical Bandwidth (nm)
From 20 nm to 110 nm to be selected
Extinction ratio (dB,typ)
50 dB*
40 dB*
Switching speed (typ)
1 ns
1 ns
2 ns
Dynamic Range (up to)
60 dB
60 dB
48 dB
Small signal Gain
From 22 to 40 dB (see wavelength table next page)
Trigger-to-pulse Jitter
<20 ps
<8 ps
<2 ns
Pulse shaping
no
no
yes
CW offset (in pulse mode)
no
yes
no
Max repetition rate
10 MHz
250 MHz
20 MHz
Max Output Power
From 20 to 100 mW (more than 500 mW have been measured in some pulsed configuration)
Compatibilities and Libraries
USB - Windows 7/10 - DLLs - Hexa - Labview - Python
Wavelength nm
Bandwidth nm
Max Input Power mW
Max Output Power *mW
Small signal Gain dB
Ref
780 & 795
30
10
30
32
H780795
800
16
10
20
30
R800
830
55
10
30
25
R830
840
25
10
50
30
R840
850
40
10
20
22
R850
870
58
10
20
25
R870
930
65
10
20
25
R930
970
40
10
30
27
R970
1000
100
70
60
33
H1000
1020
110
40
30
27
H1020
1030
20
70
60
40
H1030
1060
22
70
60
40
H1060/1
1060
90
70
60
30
H1060/2
1080
27
60
50
38
H1080
1125
25
40
30
35
H1125
1140
90
60
50
24
H1140
1190
90
40
30
20
H1190
1250
110
40
30
27
H1250
1285
85
60
50
30
S1285
1300
85
60
50
30
S1300
1310
70
40
30
23
S1310
1350
80
40
30
23
S1350
1500
35
30
25
13
S1500
1550
85
40
30
27
S1550/1
1550
50
70
60
30
S1550/2
1590
90
40
30
26
S1590
1625
80
30
20
18
S1625
*More than 500mW have been measured in some special pulsed configurations
商品属性 [波长] 700 and 1650 nm