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LK-NYDMT UWB Directly Modulated Transmitter
- High-Speed Directly Modulated DFB Laser:
- Ultra-wideband (better than 18GHz )
- Wavelength: DWDM(ITU)
- Excellent side mode suppression ratio
- Highly integrated, module packaging
- High-Dynamic-Range
- High output power
- Operating case temperature: （-40℃～70℃）
Product Description
LK-NYDMT Transmitter is primarily made up of several key components, include high-speed directly modulated Distributed Feedback (DFB) laser, automatic optical power control circuit, automatic temperature control circuit, voltage-stabilizing conversion circuit, monitoring and indicating circuit. This transmitter provides a variable wavelength in line with the Dense Wavelength Division Multiplexing (DWDM) ITU standards.
It offers a modulation bandwidth that exceeds 18GHz and can achieve an output power of up to 10mW. Operated by a single positive power supply, the LK-NYDMT Transmitter maintains stable performance across a voltage range from +7V to +36V. The transmitter is designed with several advantageous features, such as minimal relative intensity noise, excellent stability of the output wavelength, and a high level of output power.
Furthermore, LK-NYDMT Transmitter is equipped with an advanced indication function that visually confirms the status of both the power supply and the optical power output, ensuring that the system is operating within optimal parameters, this feature is essential for real-time system monitoring and for the swift identification of operational anomalies.
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 | - | DWDM(ITU) - | 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-NYDMT-X Transmitter Typical Response Curve
Figure 2 LK-NYDMT-Ku Transmitter Typical Response Curve
● Typical Spectrogram
Figure 3 LK-NYDMT Transmitter Typical Spectrogram
● Dimension Unit：mm[inch]
Figure 4 LK-NYDMT 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 | +12V | NC | GND | NC | |||||
● Order Information
Sheet 1：
| Symbol | Description |
| DM | DWDM (Dense Wavelength Division Multiplexing) 7 PIN butterfly packagepackage |
Sheet 2
| Symbol | Description |
| X | 0.1 ～ 12 GHz |
| Ku | 1 ～ 18 GHz |
Sheet3：
| Channel | Frequency (THz) | Center Wavelength (nm) | Channel | Frequency (THz) | Center Wavelength (nm) | |
| C01 | ALK-NY desired custom wavelength | C37 | 193.7 | 1547.72 | ||
| C02 | Non-ITU, 1547 nm – 1560 nm | C38 | 193.8 | 1546.92 | ||
| C03 | Non-ITU, 1557 nm – 1560 nm | C39 | 193.9 | 1546.12 | ||
| C04 | Non-ITU, 1530 nm – 1560 nm | C40 | 194 | 1545.32 | ||
| C15 | 191.5 | 1565.50 | C41 | 194.1 | 1544.53 | |
| C16 | 191.6 | 1564.68 | C42 | 194.2 | 1543.73 | |
| C17 | 191.7 | 1563.86 | C43 | 194.3 | 1542.94 | |
| C18 | 191.8 | 1563.05 | C44 | 194.4 | 1542.14 | |
| C19 | 191.9 | 1562.23 | C45 | 194.5 | 1541.35 | |
| C20 | 192 | 1561.41 | C46 | 194.6 | 1540.56 | |
| C21 | 192.1 | 1560.61 | C47 | 194.7 | 1539.77 | |
| C22 | 192.2 | 1559.79 | C48 | 194.8 | 1538.98 | |
| C23 | 192.3 | 1558.98 | C49 | 194.9 | 1538.19 | |
| C24 | 192.4 | 1558.17 | C50 | 195 | 1537.4 | |
| C25 | 192.5 | 1557.36 | C51 | 195.1 | 1536.61 | |
| C26 | 192.6 | 1556.55 | C52 | 195.2 | 1535.82 | |
| C27 | 192.7 | 1555.75 | C53 | 195.3 | 1535.04 | |
| C28 | 192.8 | 1554.94 | C54 | 195.4 | 1534.25 | |
| C29 | 192.9 | 1554.13 | C55 | 195.5 | 1533.47 | |
| C30 | 193 | 1553.33 | C56 | 195.6 | 1532.68 | |
| C31 | 193.1 | 1552.52 | C57 | 195.7 | 1531.9 | |
| C32 | 193.2 | 1551.72 | C58 | 195.8 | 1531.12 | |
| C33 | 193.3 | 1550.92 | C59 | 195.9 | 1530.33 | |
| C34 | 193.4 | 1550.12 | C60 | 196 | 1529.55 | |
| C35 | 193.5 | 1549.32 | C61 | 196.1 | 1528.77 | |
| C36 | 193.6 | 1548.51 | C62 | 196.2 | 1527.99 | |
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
