8 CH 1273, 1277,1282,1286,1295,1300,1304,1309nm, high accuracy pitch, high therm

6 CH 1273, 1277,1295,1300,1304,1309nm, high accuracy pitch, high thermal stabili

4 CH 1295-1309nm red band, high accuracy pitch, high thermal stability, 1.4nm wi

4 CH 1273-1286nm blue band, high accuracy pitch, high thermal stability, 1.3nm w

4 CH 1295-1309nm red band, high accuracy pitch, high CW stability, 1.5nm wider p

4 CH 1273-1286nm blue band, high accuracy pitch, high thermal stability, 0.75pit

4 CH 1295-1309nm red band, high accuracy pitch, high thermal stability, 0.75pit