... , pass CE and ROHS with competitive price Optical Couplers - Special Wavelengths 532 630 830 980 1064 1480 We provide single ... mode optical couplers at special wavelengths. These couplers work at wavelength of 460nm, 532nm, ... request, please contact us to discuss your specific requirements.Features:Special singlemode couplers with central wavelengths at 460, 532, 630, ...