100Gb/s QSFP28 SR4 100m-40GSR4-QSFP+40G-OpticTransceiverModule--Sharetop Technology Co.Limited

: 100Gb/s QSFP28 SR4 100m

Category：XYT-QSFP28-SR4
Code：40G SR4

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Optical Characteristics (Top=0~70℃, Vcc=3.14~3.47V)

(Tested under recommended operating conditions,unless otherwise noted)

Parameter	Symbol	Unit	Min		Typ			Max		Notes
Transmitter
Signaling rate, each lane	DRpl	Gb/s	25.78125 ±100 ppm						1
Center Wavelengthe	λ	nm	840	850			860
RMS Spectral Width		nm		0.6
Average launch power, each lane	Pavg	dBm	-8.4				2.4
Optical modulation amplitude, each lane (OMA)	OMA	dBm	-6.4				3
Extinction ratio	ER	dB	2
Average Launch Power of OFF Transmitter, per Lane	RIN	dBm					-30
Encircled Flux	FLX	dBm	>86% at 19 um <30% at 4.5 um
Optical return loss tolerance		dB					12
Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3}			{0.3,0.38,0.45,0.35,0.41,0.5}						2
Receiver
Receive Rate for Each Lane	DRpl	Gb/s	25.78125 ±100 ppm						3
Four Lane Wavelength Range	λ	nm	840			860
Overload Input Optical Power	Pmax	dBm	3.4
Average Receive Power for Each Lane	Pin	dBm	-10.3				2.4		4
Receiver Sensitivity(OMA)per lane	Psens	dBm					-5.2
Recevier Reflectance	Rfl	dB					-12
Receiver Eye MaskDefinition {X1, X2, X3, Y1, Y2,Y3}		{0.28,0.5,0.5,0.33,0.33,0.4}							5
Los De-Assert	Pd	dBm					-13
Los Assert	Pa	dBm	-30
Loss Hysteresis	Pd-Pa	dBm	0.5

Notes:

1. Transmitter consists of 4 lasers operating at a maximum speed of 25.78125Gb/s ±100ppm each.

2. Hit Ratio 1.5 x 10-3 hits/sample.

3. Receiver consists of 4 photodetectors operating at a maximum speed of 25.78125Gb/s ±100ppm each.

4. Minimum value is informative only and not the principal indicator of signal strength.

5. Hit Ratio 5 x 10-5 hits/sample.

	Products damaged due to human or non-use of other causes of improper,we promises one year warranty and lifetime maintenance,but the unauthorized disassembly equipment caused damage is not covered under warranty and returned within range.
	Under normal use,if there are product quality problems,or not work normally,we provide free repair or replacement service within one year;Within three years more than one year,we provide to collect the material cost,maintenance free. Repair warranty period of three years from the freight borne by each of the parties.After three years of warranty,the material cost,maintenance,freight(refers to the product of the two-way shipping to and from)shall be borne by the user.
	We promise that the product we provide can meet the performance requirements of users , and it is supplied by the user's sample request.

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