Fred Sugihwo, Jonathan King OM3 PIE vs launch Fred Sugihwo, Jonathan King 13th Dec 2004

OM3 PIE-D measurements TIA 2.2 demo fibres, 300m Step response of channel measured using representative 10G TOSA DML transmitter and 10G ROSA Isolated '1' synthesized from step response, and PIE-D calculated according to Bhoja_1_0704 13th Dec 2004

Launch Configurations SM Center Launch MCP Launch MMF MMF Tx Rx Tx Rx MCP SMCL + Connector Offset Launch MCP + Connector Offset Launch MMF MMF Tx Tx Rx Rx 6um SM-MM offset MCP 7um MM-MM offset 13th Dec 2004

OM3: effect of launch on TIA 2.2 demo reels SMCL SMCL + offset 50mm MCP 50mm MCP + offset MMCL B-Blue 2.784 4.866 3.685 5.969 3.905 B-Brown 2.511 3.517 5.034 7.5 3.335 B-Gray 2.388 3.311 5.416 7.601 3.336 B-Green 2.589 3.601 4.958 5.988 3.375 B-Orange 2.554 3.936 5.487 6.573 3.526 B-White 2.673 4.904 5.067 7.560 3.668 O-Aqua 2.422 3.003 4.604 6.980 3.260 O-Black 2.621 5.288 5.050 7.318 3.597 O-Pink 2.588 3.435 3.992 4.968 3.584 O-Purple 2.579 5.102 5.774 5.668 3.858 O-Red 2.408 3.828 5.343 7.672 3.298 O-Yellow 2.270 2.708 4.441 6.367 3.044 Worst case PIE-D Color code Red: >5.5dB PIE-D Yellow: 4-5.5dB PIE-D Green: <4dB PIE-D Best launch for OM3 fibers is single-mode centre launch 13th Dec 2004

OM3: effect of launch on TIA 2.2 demo reels Input patchcord manipulated to give highest PIE-D Best launch for OM3 fibers is single-mode centre launch Direct centre launch into MMF also viable 50um offset launch results in significantly higher PIE-D 13th Dec 2004