Transmission bandwidth(-30dBm): ~0.28nm, Reflection bandwidth(-25.5dB): about 0.54nm, so we believe they are 50GHz FBG. (temperature=25 C): With individual test data, transmission and reflection spectrum, as shown as the photos (photos are only samples, wavelength is different if P/N is different). Please check available wavelength, qty, and price at the description bottom below.
Wavelengths:
FBG-LDT1-515-00, 1536.22mn; FBG-LDT1-530-00, 1535.039nm; FBG-LDT1-545-00, 1533.859nm; FBG-LDT1-550-00, 1533.452nm; FBG-LDT1-555-00, 1533.081nm; FBG-LDT1-560-00, 1532.684nm; FBG-LDT1-565-00, 1532.298nm; FBG-LDT1-570-00, 1531.896nm; FBG-LDT1-580-00, 1531.129nm; FBG-LDT1-585-00, 1530.751nm