LK-NYCMT Series UWB Directly Modulated Transmitter
- Ultra-wideband (better than 18GHz )
- CWDM
- High-Dynamic-Range
- High output power
- Low RIN
- Operating case temperature:(-40℃~70℃)
Product Description
LK-NYCMT Transmitter is primarily constructed of high-speed directly modulated Distributed Feedback (DFB) laser, automatic optical power control circuit, automatic temperature control circuit, voltage-stabilizing conversion circuit, monitoring and indication circuit. This transmitter offers a selection of wavelengths (1270nm, 1290nm, 1310nm, 1330nm, 1350nm, 1370nm, 1390nm) and boasts a modulation bandwidth that exceeds 18GHz, with an output power capable of reaching 10mW.
LK-NYCMT Transmitter operates on a single positive power supply and is engineered to function reliably within a voltage range from +7V to +36V. It boasts several advantageous features, including low relative intensity noise (RIN), excellent stability in output wavelength, and high output power, which collectively contribute to its superior performance in optical communication systems.
Additionally, the LK-NYCMT Transmitter is equipped with an indication function that provides clear feedback on the status of the power supply and optical power output, ensuring that the system's operational parameters are within the desired range, this feature is crucial for maintaining system integrity and facilitating prompt troubleshooting.
Technical Specifications
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Typ. | Max. | Unit |
| Storage temperature | TSTG | -55 | +25 | +85 | ℃ |
| Operation temperature | TC | -40 | +25 | +70 | ℃ |
| RF input power1 | Pin | - | +10 | +20 | dBm |
| Voltage | Vin | +7 | +12 | +36 | V |
(1) Continuous wave (CW) working mode.
Optical and Electrical Specification (TC = 22±3℃)
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Wavelength | λ | - | 1370 | CWDM | 1390 | nm |
| Frequency(3dB) | f3dB | X band | 0.1 | - | 12 | GHz |
| Ku band | 1 | - | 18 | |||
| Light output power | P | - | 5 | 10 | - | mW |
| Relative Intensity Noise | RIN | - | - | - | -155 | dBc/Hz |
| Return loss(VSWR) | VSWR | X band | - | - | 2 | - |
| Ku band | - | - | 2.2 | |||
| Input 1 dB Compression | - | - | +13 | +15 | - | dBm |
Power Supply (TC = 22±3℃)
| Parameter | Min. | Typ. | Max. | Unit |
| Voltage | +7 | +12 | +36 | V |
| Current(2) | 0.07 | 0.1 | 1 | A |
(2)Test condition:Vin=+12V.
● Typical Response Curve

Figure 1 LK-NYCMT-X Transmitter Typical Response Curve

Figure 2 LK-NYCMT-Ku Transmitter Typical Response Curve
● Typical Spectrogram

Figure 3 LK-NYCMT Transmitter Typical Spectrogram
● Dimension Unit:mm[inch]

Figure 4 LK-NYCMT Transmitter Dimension
RF Connector:SMA
Power Connector:J30J-9-ZKP
● Pin Of Power Supply
| Parameter | Description | ||||||||
| Pin | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Voltage | Vin | NC | GND | NC | |||||
● Order Information

Sheet 1:
| Symbol | Description |
| CM | CWDM Coarse Wavelength Division Multiplexer 7PIN butterfly package |
Sheet 2
| Symbol | Description |
| X | 0.1 ~ 12 GHz |
| Ku | 1 ~ 18 GHz |
Sheet 3:
| Symbol | W1 | W2 | W3 | W4 | W5 | W6 | W7 |
| Wavelength(nm) | 1270 | 1290 | 1310 | 1330 | 1350 | 1370 | 1390 |
Sheet 4:
| Symbol | Connector Type | Description |
| N | Customized | Customized |
| A | FC / APC | Standard 9/125μm SM fiber |
| P | FC / PC | Standard 9/125μm SM fiber |
Applications
Antenna&Radar
Electronic countermeasure system
Analog RF links transmission
Broadband Wireless Communication
Mobile communication base station

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