Finisar FTLX8561E2 manual IV. Optical Characteristics, Receiver

FTLX8561E2 Product Specification – October 2008

IV. Optical Characteristics

(VCC5 = 4.75 V to 5.25 V, VCC3 = 3.14 V to 3.47 V, VCC aps = 1.152 V to 1.248 V, TC = 0°C to 70°C, BER 1E-12, Bit Rate 10.3125)

Parameter	Symbol			Values		Unit
		min.		typ.	max.
Transmitter
Launch Power in OMA1)	PO-OMA	–2.8		–1.5		dBm
Average Launch Power	PO-Avg	–5			–1	dBm
Transmitter and Dispersion Penalty	TDP				3.9	dB
Center Wavelength Range1)	λC-Tx	840		850	860	nm
RMS Spectral Width1)	σI			0.4	0.45	nm
Extinction Ratio	ER	3		5.5		dB
Relative Intensity Noise12OMA	RIN				–128	dB/Hz
Eye Mask Definition		According to IEEE 802.3ae
Encircled Flux	EF		at 19 µm ≥86%, at 4.5 µm ≤ 30%
Optical Return Loss Tolerance	ORLT				12	dB
Average Launch Power of OFF	PO-OFF				–30	dBm
Transmitter
Receiver
Stressed Receiver Sensitivity in OMA	PIN-S				–7.5	dBm
Receiver Sensitivity in OMA2)	PIN				–11.1	dBm
Average Receive Power	PIN-max				-1	dBm
Signal Detect Deassert Level	PSDL				–14.5	dBm
Signal Detect Assert Level	PSD	–18.0				dBm
Signal Detect Hysteresis	PSD	0.5		1.5		dB
Receiver Reflectance	REFRX				–12	dB
Center Wavelength Range	λC-RX	840			860	nm

1)Conforms to IEEE triple trade-off between center wavelength, RMS spectral width and minimum OMA.

2)Receiver sensitivity, which is defined for an ideal input signal is informative only.

V. General Specifications

Optical Interface Standard Specifications

		Minimum Modal Bandwidth at	Operating Range 1)
Standard	Fiber Type	850 nm (MHz*km)	(meters)
IEEE	62.5 µm MMF	160	2 to 26
	50 µm MMF	400	2 to 66
	50 µm MMF	500	0.5 to 82
	50 µm MMF	2000	0.5 to 300

Notes:

1) Operating range as defined by IEEE standards. Longer reach possible depending upon link implementation.

© Finisar Corporation – October 2008 Rev B Page 7