Optoelectronic module with integrated loop-back capability
AssigneeAvago Technologies Fiber IP (Singapore) Pte. Ltd.
InventorDavid Chown
Life of this patent
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Abstract
An optoelectronic module includes an optical radiation source (T) having associated an output transmission path (V1, V2, C1) for an output optical radiation generated by the source (T) as well as an optical radiation detector (R) having associated an input transmission path (C2, V3, V4) for an input optical radiation to be detected by said detector (R). The module includes, as an integral part thereof, a loop-back arrangement (M1, M2; M12; VOA; OW) selectively activatable to cause the output optical radiation generated by the source (T) to at least partly propagate from the output transmission path (V1) towards the input transmission path (V4), whereby the optical radiation generated by the source (T) is directed towards the optical detector (R) to be detected thereby.
Claims14
An optoelectronic module, including:
- an optical radiation source (T) having associated an output transmission path (V1, V2, C1) for an output optical radiation generated by said source (T),
- an optical radiation detector (R) having associated an input transmission path (C2, V3, V4) for an input optical radiation to be detected by said detector (R),
- characterised in that the module includes, as an integral part thereof, a loop-back arrangement (M1, M2;
- M12;
- VOA;
- OW) selectively activatable to cause said output optical radiation generated by said source (T) to at least partly propagate from said output transmission path (V1) towards said input transmission path (V4), whereby said optical radiation generated by said source (T) is directed towards said optical detector (R) to be detected thereby.
The module of any of the previous claims, characterised in that said loop-back arrangement includes an optical attenuator (VOA) arranged to be traversed by optical radiation propagating from said source (T) towards said optical detector (R).
The module of any of the previous claims, characterised in that said optical radiation source (T) has associated an optical isolator (IS) arranged at the upstream end of said loop-back arrangement.
The module of any of the previous claims, characterised in that said loop-back arrangement is in the form of a planar lightwave circuit (PLC).
Dependencies are inferred from the claim text.