| 摘要 |
<p>A dual wavelength optical coupler is disclosed which provides either bidirectional or unidirectional communication at different wavelengths over a single fiber. The coupler utilizes a dichroic filter (e.g., 12) and a set of three lenses (e.g., 10, 14, 16) to achieve dual wavelength communication. Additional blocking filters (e.g., 34, 48) may be incorporated to decrease the degree of optical crosstalk present in the system.</p> |
