Future Optics‘ z-block is a passive optical subassembly (POSA) based on our free-space-optics wavelength division multiplexing (WDM) platform to deliver optical mux / demux functionality directly inside standard or customized small-form-factor transceivers. Our unique filter based ROSA block and TOSA block are designed to seamlessly integrate with your specific input and output interface.Future Optics Z-block subassemblies are available for various channel center wavelength LWDM4 transceivers and with custom beam pitch designs.
Future Optics' 4 CH LWDM4 Z- Block is a LWDM Block to act as a Mux or Demux optical sub-assembly, working at red-band from 1295.56 to 1309.14 nm and matching with 0.75 mm pitch LD or PD array, which is integrated inside the transceivers to combine or separate 800GHz spacing 4 channels.
Based on thin film filter technology and optical path Zig-Zag design of micro-optics, taking advantage of high precision assembly, this product features small form, ultra-low loss, high channel isolation and exceptional stability in comparison with AWG WDM mux demux device based on silicon chip technology.
The very high parallelism pitch tolerance of the LWDM4 Z-blocks enables a rapid alignment process during coupling and assembly.
Future Optics provide all kinds of LWDM Z-BLOCK mux demux devices with various channel numbers, beam pitches and angle of incidence for customers to choose.
Feature：
● Low insertion loss
● Flat-top broad passband
● Excellent isolation
● High beams parallelism
● Exceptional reliability and stability
● Telcordia GR-1221/1209-Core Compliant
Application：
● MUX/DEMUX for high speed transceivers in Datacom/Telecom, such as CFP2/4/8, QSF28, QSFP-DD, and beyond.
Specification:
| Parameters | Unit | Value |
| Operating wavelength range | nm | 1260~1360 |
| Channel center wavelength | nm | 1295.56, 1300.05, 1304.58, 1309.14 |
| Pass band | nm | ±1.3 |
| Ripple over pass band | dB | 0.4 |
| Channel insertion loss | dB | 1 |
| Angle of incidence | ° | 8.0°±0.2 |
| IL uniformity | dB | ≤0.6 |
| Beam pitch | Mm | 0.75±0.05 |
| Adjacent channel isolation | dB | 25 |
| Non-adjacent channel isolation | dB | 35 |
| Polarization dependent loss | dB | ≤0.25 |
| Return loss | dB | 45 |
| Parallel of all beams | ° | ≤0.2 |
| Operating temperature | °C | -20 ~ +70 |
| Storage temperature | °C | -40 ~ +85 |
| Footprint dimension (L*W*H) | mm | 5.33*3.37*1 |
- Previous：4Channels 1273.55-1286.67nm, with I/O prism,0.5-1.0mm pitch, AOI 8/13.5 deg, 3.0nm wider passband,Low CW temp. drift, Low IL LWDM4 Rx Z-BLOCK demux
- Next：6Channels 1273nm, 1277nm and 1295-1309nm,0.75-1.1mm pitch, AOI 8/13.5 deg, 3.0nm wider passband,Low CW temp. drift, Low IL LWDM6 Z-BLOCK mux demux