| 产品特性：功率稳定 | 加工定制：否 | 品牌：梓冠 |
| 型号：ZG-DFB | 种类：激光器 | 波段范围：1550 |
| 运转方式：连续式 | 激励方式：电激励式 | 工作物质：半导体 |
| 光路径：透过型外光路 | 输出形式：功率型 | 传输信号：单电源型 |
| 速度：高速 | 通道：单通道 | 输出波长：1550nm |
〖简介Describtion〗
温控尾纤激光器系列，采用量子阱结构的DFB激光器，内置半导体制冷器，先进的激光焊接工艺实现蝶形（butterfly）尾纤式封装，结构紧凑，体积小，在光纤通信领域得到广泛应用；半导体制冷器高精度温度控制下，激光器功率高稳定、波长高稳定的优势，使得激光器在光纤传感器领域得到广泛应用。
Temperature controlled pigtail laser series, using quantum well structure DFB laser, built-in semiconductor refrigeration, advanced laser welding process to achieve butterfly tail fiber packaging, compact structure, small volume, widely used in the field of optical fiber communication; Due to the advantages of high power and wavelength stability under high precision temperature control of semiconductor refrigeration, laser is widely used in the field of optical fiber sensor.
〖应用Applications〗
光纤气体检测系统
Fiber optic Gas detection system
气体检测用无源器件生产检测
Production and testing of passive component for Gas detection
〖特性Features〗
采用进口量子阱结构DFB半导体激光器芯片
Imported quantum well structure(OMQs) DFB semiconductor laser chip
波长稳定
Stable wavelength
高输出功率
High output power
气密性温控封装
hermetic package
封装形式：BF14 尾纤式、TF8 空间式、TO39 及其他定制
Packaging:BF14 Pigtail type,TF8 space type,TO39 and other customized
〖额定极限工作条件Rated limit operating conditions〗
参 数 Parameters | 符号 Symbol | 参数值 Value | 单 位 Unit |
激光二极管正向电流 Forward current of laser diode | If(LD) | 100 | mA |
激光二极管反向电压 Reverse voltage of laser diode | Vr(LD) | 2 | V |
背光探测器工作电流 Operating current of backlight detector | If(PD) | 2 | mA |
背光探测器反向电压 Operating voltage of backlight detector | Vr(PD) | 20 | V |
致冷器工作电流 Operating current of refrigerator | ITEC | 2.4 | A |
致冷器工作电压 Operating voltage of refrigerator | VTEC | 2.9 | V |
工作温度 Operating temperature | Topr | -20～+70 | ℃ |
储存温度 Storage temperature | Tstg | -40～+85 | ℃ |
引线焊接温度/时间 Lead welding temperature/time | Tsld | 260/10 | ℃/s |
〖技术参数：（测试环境温度为25℃）〗
〖Technical parameter:(Test environment temperature is 25℃)〗
参数 Parameters | 符号 Symbol | 测试条件 Condition | 最小值 Min. | 典型值 Typ. | 值Max. | 单位 Unit |
出光功率 Parameters | PO | CW | 3 | 10 | mW | |
阈值电流 Optical power | Ith | CW | ? | 12 | 18 | mA |
工作电流 Threshold current | Iop | CW, 5mW | - | ? | 100 | mA |
工作电压 Operating current | Vop | CW, 5mW | ? | 1.5 | 2.0 | V |
斜率效率 Slope efficiency | η | CW, 5mW | 0.05 | 0.1 | ? | mW/mA |
峰值波长 Peak wavelength | λp | CW, 5mW@25℃ | λc -1 | λc | λc+ 1 | nm |
波长稳定度Wavelength stability | λs | CW，5mW@25℃ | -0.1nm | +0.1 | dB | |
边模抑制比 Side mode suppression ratio | SMSR | CW, 5mW | 35 | ? | ? | nm |
光谱宽度(20dB) Spectral width(20dB | ?λ | CW, 5mW | ? | 0.2 | nm/℃ | |
波长随温度变化漂移系数 Wavelength drift coefficient with temperature | Δλ/T | 稳定工作电流Steady operating current | 0.1 | nm/℃ | ||
波长随电流变化漂移系数 Wavelength drift coefficient with current | Δλ/I | 稳定工作温度Steady operating temperature | 0.01 | nm/mA | ||
热敏电阻 Thermistor | Rth | Ttherm = 25?C | 9.5 | 10 | 10.5 | k? |
注意:
气体检测中，根据HITRAN提供的吸收谱线数据，同一种气体通常几个吸收峰，客户应先根据自己的系统需要选择中心波长位置。
Attention:
In gas detection, according to the absorption spectrum data provided by HITRAN, there are usually several absorption peaks for the same gas. Customers should choose the best center wavelength location according to their own system needs.
〖气体吸收参考表Gas absorption reference table 〗 〖外形尺寸External dimensions〗
气体成分 Gas component | 吸收波长 Absorption wavelength |
O2 | 761nm、764nm (VCSEL) |
HF | 1268.7nm、1273nm、1278nm |
H2O | 1368.59nm、1392nm |
NH3 | 1512nm |
C2H2 | 1532.68nm |
CO | 1567nm |
H2S | 1578nm |
Co2 | 1580nm、2.0um |
C2H4 | 1620nm、1627nm |
CH4 | 1647nm、1650.9nm、1653.7nm、1660nm |
HCl | 1742nm |
