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LK-NYSD Mini UWB DML Laser Module
- Miniature Design
- Direct Modulation
- High-Dynamic-Range
- 18 GHz Bandwidth
- Low threshold current
- High output power
- 7pin butterfly package with SMA connector
- Operating case temperature: -40 to 70℃
- Enhanced Reliability
- Low RIN
Product Description
LK-NYSD laser is a compact, directly modulated DFB laser designed for superior performance in linear fiber optic communication systems. It is capable of emitting wavelengths at 1310nm, 1550nm, and CWCM. These lasers serve as a superior substitute to coaxial cable systems for transmitting signals at 12 GHz or 18 GHz frequencies.
It enhance the reliability of microwave communication networks by preserving the integrity of the RF signal during transmission. Due to these characteristics, this laser products significantly boost signal quality across a broad spectrum of applications, such as antenna remoting, telemetry, timing and reference signal distribution, and measurement and delay lines.
LK-NYSD laser features an integrated optical isolator, thermoelectric cooler (TEC), thermistor, laser diode chip, and monitor photodiode, all of which are sealed within a 7-pin butterfly package to ensure hermetic protection.
Technical Specifications
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Max. | Unit |
| Laser diode forward current | If | - | 120 | mA |
| Laser diode reverse voltage | V | - | 1 | V |
| Front power | Pf | - | 20 | dBm |
| PD reverse voltage | V | - | 15 | V |
| Forward current (PD) | Im | - | 2 | mA |
| Operation temperature | To | -40 | +70 | °C |
| Storage temperature | Ts | -55 | +85 | °C |
| Storage relative humdity | Sr | - | 85 | % |
Electrical / Optical Characteristics (TC = 22±3℃)
| Parameter | Symbol | Test Condition | Min | Typ | Max | Units | Note |
| Wavelength | λ | IF= Iop, T = Top | 1310nm, 1550nm, CWDM - | nm | selected | ||
| Frequency | - | X band | 0.1 | - | 12 | GHz | - |
| Ku band | 1 | - | 18 | ||||
| Optical Output Power | P | IF=Iop | - | 10 | - | mW | 1 |
| Thershold current | Ith | - | - | - | 10 | mA | - |
| Operation current | Iop | - | - | 55 | 100 | mA | - |
| Operation voltage | Vop | - | - | 1.5 | 2.5 | V | - |
| Slope efficiency | SE | - | 0.2 | - | - | W/A | - |
| Side-mode suppression ratio | SMSR | IF=Iop | 30 | - | - | dB | - |
| Relative Intensity Noise | RIN | - | - | -150 | -130 | dB/Hz | - |
| Bandwidth (-3dB, I=60mA) | S21 | X band | - | 12 | - | GHz | - |
| Ku band | - | 18 | - | ||||
| Return loss（VSWR） | VSWR | X band | - | - | 2 | dB | - |
| Ku band | - | - | 2.2 | ||||
| Input 1 dB Compression | - | - | 15 | - | - | dBm | - |
| Thermistor Resistance | Rth | @25°C | - | 10 | - | Kohm | - |
| TEC current | It | - | - | - | 1.2 | A | 2 |
| TEC voltage | Vt | - | - | - | 2.5 | V | 2 |
| Capacitance (PD) | Ct | - | - | - | 20 | pF | - |
| Monitoring current | Im | - | 0.10 | - | 2.0 | mA | - |
| Dark current (PD) | Id | - | - | - | 50 | nA | - |
Notes:All laser chips come from wafers that have been certified using a representative lot of devices that must achieve an acceptable yield for burn-in.
1. Laser temperature set 25℃, bias current at 55mA
2. Operation case temperature -40~70℃
● Typical Curve
Figure 1. LK-NYSD Series laser X band S-curve
Figure 2. LK-NYSD Series laser Ku band S-curve
● Typical Spectrogram
Figure 3. LK-NYSD Series laser Spectrogram - band 1nm
Figure 4. LK-NYSD Series laser Spectrogram - band 10nm
● Dimension
Figure 5. Dimension of LK-NYSD Series
● Definition of Pin
| Item | Definition | ||||||||
| Pin | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Description | PD- | PD+ | LD- | Thermistor | Thermistor | TEC- | TEC+ | RF output | Optical input输入 |
| Type | -- | -- | -- | -- | -- | -- | -- | SMA-K | FC/APC |
● ORDER INFORAMTION
Sheet 1：
| Model | 13 | 15 | W1 | W2 | W3 | W4 | W5 | W6 | W7 |
| Wavelength(nm) | 1310 | 1550 | 1270 | 1290 | 1310 | 1330 | 1350 | 1370 | 1390 |
| CWDM | |||||||||
Sheet 2：
| Model | Frequency |
| X | 0.1 ～ 12 GHz |
| Ku | 1 ～ 18 GHz |
Sheet 3：
| Model | Type of optical connector | Remark |
| N | Customized | |
| A | FC / APC | Standard 9/125μm single mode fiber |
| P | FC / PC | Standard 9/125μm single mode fiber |
Applications
High-Speed Data Communications
Antenna Remoting
Cellular and PCS Networks
Analog RF links transmission
Military Communications
Tracking, Telemetry, and Control
Telemetry Systems
Military and Defense Systems
