The LT-1550 series is a high performance electrical to optical converter designed for applications requiring wide-band digital modulation or high bit-rate data transmission. LT-1550 series transmitters utilize a narrow linewidth 1550nm wavelength DFB laser and a broadband optical modulator to provide pure and efficient modulation. These products are ideal for DWDM or TDM digital data transmission up to 12.5Gb/s. It can also be a excellent product for electro-optic component characterization, DWDM networks, TDM link, laboratory test and measurement. The transmission distance can be extended up to 500km with Dispersion Compensation and EDFA.
LT-1550 series can be ordered with two versions of modulation bandwidth: 5Gb/s and 12.5Gb/s. Its DFB laser operating wavelength can also be custom ordered with any ITU DWDM grid within C-Band, at 50/100GHz channel spacing. The housing choice include a 19” rack mount and bench top model. All LT-1550 series products come with a standard 3 year limited warranty.
Features:
- Linewidth of DFB laser < 1MHz
- Lithium-Niobate modulator with bandwidth > 12GHz
- High gain RF driver module enable low input level
- Automatic Bias Control Circuit for stable operation
- Excellent eye diagram for error-free transmission
- Connector choice: FCA, FCU, SCA, SCU, LCA, LCU
- Polarization Maintaining (PM) output available
- Available in rack mount or bench top housing
- Three year limited warranty
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Technical Specifications |
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Model Number |
LT-1550-12.5-R |
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Electro-Optic Specifications |
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Modulation Format |
NRZ, RZ |
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Modulation Bandwidth |
Up to 12.5Gb/s NRZ |
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Modulator Type |
Lithium Niobate, zero chirp. 10GHz BW |
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Input RF Voltage |
> 0.5 Volt p-p |
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RF Return Loss, S11 |
>13 dB |
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Optical Output Power |
> 7 dBm |
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Modulator Bias Mode |
Automatic Bias Control |
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Extinction Ratio |
> 13 dB @ 12.5 G/bs, >23 dB @ 10 Mb/s |
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RF Impednace |
50 Ohm |
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RF Drive Volatge Control |
10 dB |
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Modulator Voltage Range |
7.0 Volt p-p at 12.5Gbs |
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Rise/Fall Time |
40 ps maximum |
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Optical Specifications |
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Laser Type |
DFB with with < 1MHz linewidth |
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Laser Wavelength |
1550 nm +/-10nm, 1528-1563nm, user select |
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Laser Power Level |
20 mW minimum |
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Relative Intensity Noise |
> -145 dB/Hz |
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Side Mode Suppression Ratio Ratio |
45 dB typical |
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Optical Isolation |
30 dB minimum |
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Environment / User Interface |
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External Laser Input |
Panda, FC/APC |
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RF Input Connector |
SMA |
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Output Optical Connector |
FC/APC, FC/UPC, PM optional |
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Polarization Extinction Ratio |
20 dB typical |
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Output Fiber |
SMF 28, Panda for PM option |
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Display |
LCD |
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Computer Interface |
RS-232 |
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Control |
Key lock switch, Laser ouput, Drive Voltage, Bias Control |
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Power Supply |
80-240VAC, 43-63Hz |
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Dimensions |
19 |
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Operation Temperature Range (C) |
0°C to +40°C |
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Storage Temperature Range (C) |
-40°C to +70°C |
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