WST-QSFP+PL4L-C

規定値-4.5からプラス1.5dBm

  DOM値 測定値
1/1 -1.17 -1.60
1/2 -1.71 -1.37
1/3 -2.03 -2.06
1/4 -1.92 -1.60
2/1 -1.13 -2.28
2/2 -2.30 -2.74
2/3 -2.67 -3.12
2/4 -1.72 -2.38

 

bias電流のばらつき

bias電流は35mA前後のものと60mA程度のものまでばらつきがある。ワーニングレベルは70mA。

  serial ch1(mA) ch2(mA) ch3(mA) ch4(mA)
swp3 TS85P10004
36.608
-1.10
35.264
-2.29
35.968
-2.68
35.008
-1.73
swp5 TS85P10005
58.752
-1.15
56.832
-1.68
58.240
-2.01
42.112
-1.92
swp7 TS85P10003
31.040
-2.25
50.624
-2.29
48.704
-1.53
58.368
-1.29
swp9 TS85P10008
36.416
-2.16
37.056
-2.61
36.800
-2.80
36.288
-2.36
swp11 TS85P10007
59.072
-1.71
55.168
-1.92
57.982
-1.81
56.448
-1.18
swp13 TS85P10006
48.960
-1.15
52.032
-1.71
32.768
-1.76
57.152
-2.00

bias-and-tx.png

WST-QS28-LR4-C

  DOM値(dBm) 測定値 換算値 bias(mA)
 1807270371-1 1.58 7.8 1.8 45.862
 1807270371-2 0.63 1.8 38.024
 1807270371-3 1.41 1.8 48.058
 1807270371-4 1.31 1.8 43.850
 1807270374-1 0.49 6.83 0.83 35.536
 1807270374-2 0.43 0.83 30.664
 1807270374-3 0.95 0.83 34.370
 1807270374-4 0.57 0.83 37.072
 1807270373-1 0.79 7.88 1.88 39.004
 1807270373-2 2.53 1.88 49.304
 1807270373-3 1.71 1.88 43.300
 1807270373-4 1.42 1.88 43.266
 1807270372-1 1.51 7.19 1.19 35.138
 1807270372-2 1.61 1.19 38.952
 1807270372-3 1.39 1.19 43.188
 1807270372-4 1.59 1.19 43.664

 

測定機器

Hakutronics photom model 211A serial 0208161 校正はしていません。100G LR4の合成出力は測定可能範囲を越えるため10dBのアッテネーターを使用して測定し、その結果に10dB加算した値です。

時間変化観測

WST-QSFP+PL4L、室温24度、モジュール挿入直後

Module temperature                        : 23.46 degrees C / 74.24 degr ees F 
Laser tx bias current (Channel 1)         : 57.792 mA
Laser tx bias current (Channel 2)         : 56.192 mA
Laser tx bias current (Channel 3)         : 57.600 mA
Laser tx bias current (Channel 4)         : 41.408 mA
Transmit avg optical power (Channel 1)    : 0.7634 mW / -1.17 dBm
Transmit avg optical power (Channel 2)    : 0.6743 mW / -1.71 dBm
Transmit avg optical power (Channel 3)    : 0.6262 mW / -2.03 dBm
Transmit avg optical power (Channel 4)    : 0.6434 mW / -1.92 dBm

30分経過後

Module temperature : 27.96 degrees C / 82.32 degr ees F 
Laser tx bias current (Channel 1) : 59.008 mA
Laser tx bias current (Channel 2) : 56.832 mA 
Laser tx bias current (Channel 3) : 58.368 mA 
Laser tx bias current (Channel 4) : 42.432 mA 
Transmit avg optical power (Channel 1) : 0.7654 mW / -1.16 dBm 
Transmit avg optical power (Channel 2) : 0.6749 mW / -1.71 dBm 
Transmit avg optical power (Channel 3) : 0.6263 mW / -2.03 dBm 
Transmit avg optical power (Channel 4) : 0.6440 mW / -1.91 dBm

一時間経過後

Module temperature : 27.14 degrees C / 80.85 degr ees F 
Laser tx bias current (Channel 1) : 58.944 mA 
Laser tx bias current (Channel 2) : 56.768 mA 
Laser tx bias current (Channel 3) : 58.240 mA 
Laser tx bias current (Channel 4) : 42.176 mA 
Transmit avg optical power (Channel 1) : 0.7684 mW / -1.14 dBm 
Transmit avg optical power (Channel 2) : 0.6767 mW / -1.70 dBm 
Transmit avg optical power (Channel 3) : 0.6285 mW / -2.02 dBm 
Transmit avg optical power (Channel 4) : 0.6438 mW / -1.91 dBm

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