富光科技 LWDM 4 Rx TFF 一体化集成光组件基于 Fiber-to-the-Chip (FTTC) on-board connectivity technolog从光纤到芯片的板上连接技术，应用于400G及更高速率光模块的接收端，实现与客户光口电口无缝对接，它由Receptacle链接头、迷你准直器、LWDM 4 Z-block、透镜阵列和输出棱镜等经过高精度pitch定位组装而成。通过对有限空间范围内光路设计优化和光学元件的优化，极大降低了器件功耗和单位比特的成本，与基于AWG技术的DEMUX组件相比较，它具有更低插损、更高隔离度、更优通道一致性和更高热稳定性。富光科技为客户提供从滤波片开炉到产品设计、光路仿真、可靠性分析和系统容差评价的深度定制服务，同时也接受客户对生产线进行现场稽核，按需提供产品底层数据和半成品相关性能指标数据。
富光科技 0.75 pitch LWDM 4 Rx TFF 一体化光组件是利用富光科技自由空间微光学波分复用设计和制造平台推出的起到Demux功能的0.75 pitch ROSA集成光组件，它基于 Fiber-to-the-Chip (FTTC) on-board connectivity technolog从光纤到芯片的板上连接技术，把Receptacle同轴陶瓷插芯、小型准直器、LWDM4 Rx Z-block、透镜阵列和输出棱镜等光学元件经过光耦合和高精度定位集成在一起，实现与客户Com端光口插拔对接，与客户PD端感光面精准耦光对准。
与基于AWG技术的Rx组件相比较，它具有更低插损、更高隔离度、更优通道一致性和更高热稳定性的特点。
富光科技为客户提供从滤波片开炉到产品设计、光路仿真、可靠性分析和系统容差评价的深度定制服务，成品提供PD光电流数据。
Features
● Ultra compact size
● Low Insertion Loss
● Flat-top broad passband
● Excellent Channel Uniformity
● High channel isolation
● Exceptional thermal reliability and stability
● Telcordia GR-1221/1209-CORE Compliant
Applications
● Metro and access networks long-reach/extended-reach transceivers，Data center transceivers
● Supports major transceiver form factors CFP2/4/8, QSF28, QSFP-DD, and beyond
技术指标：
Parameter | Unit | Specifications | |
Channel number | CH | 4 | |
Channel center wavelengths | nm | 1295.56/1300.05/1304.58/1309.14 | |
Operating wavelength | nm | 1260~1360 | |
Channel spacing | GHz | 800 | |
Channel passband | nm | lc ± 1.4 | |
Insertion loss | dB | <=1.2 | |
Ripple over pass band | dB | <= 0.6 | |
Isolation | Adjacent channel | dB | >= 26 |
Non-adjacent channel | dB | >= 40 | |
Polarization dependent Loss | dB | <= 0.25 | |
Polarization mode dispersion | ps | <= 0.2 | |
Total crosstalk | dB | 25 | |
Return loss | dB | >= 45 | |
Dimension | mm | LxWxH 38*5*4 or Customization | |
Light spot pitch X | mm | 0.75±0.03 | |
Light spot pitch Y | mm | 0 ±0.03 | |
Light spot diameter@PD | mm | 0.012 | |
Operating temperature | °C | -5 ~ +70 | |
Storage temperature | °C | -40 ~ +85 | |
可靠性测试与测试条件：
Temperature cycling | Temperature -40℃ to 85℃ | GR-12216.2.7 |
Damp heat test | Temp.: 85℃; Humidity: 85%RH | GR-1221 6.2.5 |
Dry heat | 85°C (±2°C) < 40% RH, 2000 hrs. | GR-1221 6.2.4 |