Superluminescent Diode Devices

A Superluminescent Diode (SLD) is an edge-emitting semiconductor light source. The unique properties of a Superluminescent Diode (SLD) are its high output power and low beam divergence, similar to an injection laser diode (LD), but with a broad emission spectrum and low coherence, similar to a light emitting diode (LED). Superluminescent Diodes (SLDs) are similar in geometry to lasers but have no built-in optical feedback mechanism required by LDs for stimulated emission to achieve lasing. The main distinctive differentiations for Superluminescent Diode (SLD) operation compared to that of LDs are: much higher gain, much higher current density and much stronger non-uniformity of photons and carrier density distribution inside the active region. Superluminescent Diodes (SLDs) have structural features similar to those of LEDs that suppress the lasing action by reducing the reflectivity of the facets. Superluminescent Diodes (SLDs) are essentially highly optimized LEDs. While Superluminescent Diodes (SLDs) operate like LEDs at low current levels, their output power increases superlinearly at high currents.

There are six key parameters used to characterize a Superluminescent Diode (SLD): (1) Output Power;(2) Optical Gain; (3) ASE Spectrum Bandwidth or 3dB Bandwidth; (4) Spectrum Modulation or Ripple; (5) Coherence Length; and (6) Coherence Function.

Center Wavelength(nm)
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Typical 3dB Bandwidth(nm)
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Typical Output Power(mW)
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Typical Ripple(dB) Typical Current
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Package Type Part Number
Center Wavelength(nm) Typical 3dB Bandwidth(nm) Typical Output Power(mW) Typical Ripple(dB) Typical Current Package Type Part Number
750 10 3 0.1 120 BUT or DIL IPSDD0701
750 14 8 0.1 120 BUT or DIL IPSDD0703
750 14 10 0.1 120 TO 8, 9 or 56 Ex-Window IPSDT0701
750 20 5 0.1 150 BUT or DIL IPSDD0704
770 15 8 0.1 180 BUT or DIL IPSDD0705
770 20 5 0.1 140 BUT or DIL IPSDD0706
780 12 3 0.1 150 BUT or DIL IPSDD0702
780 12 10 0.1 180 BUT or DIL IPSDD0707
780 40 5 0.1 200 BUT or DIL IPSDD0708
800 10 15 0.1 200 BUT or DIL IPSDD0809
800 40 5 0.1 200 BUT or DIL IPSDD0810
820 15 0.3 0.1 120 BUT or DIL IPSDD0801
820 15 5 0.1 120 TO 8, 9 or 56 Ex-Window IPSDT0801
820 15 8 0.1 140 TO 8, 9 or 56 Ex-Window IPSDT0802
820 25 2.5 0.1 140 BUT or DIL IPSDD0802
820 25 8 0.1 140 TO 8, 9 or 56 Ex-Window IPSDT0803
820 40 5 0.1 180 BUT or DIL IPSDD0803
830 30 15 0.2 200 BUT or DIL IPSDD0820
830 32 45 0.1 250 TO 8, 9 or 56 Ex-Window IPSDT0804
830 40 7 0.1 200 BUT or DIL IPSDD0812
830 40 10 0.1 150 TO 8, 9 or 56 Ex-Window IPSDT0805
830 50 5 0.1 150 BUT or DIL IPSDD0813
840 35 5 0.1 160 BUT or DIL IPSDD0804
840 45 8 0.1 200 BUT or DIL IPSDD0807
840 45 11 0.1 250 BUT or DIL IPSDD0808
840 50 8 0.1 200 BUT or DIL IPSDD0823
850 50 8 0.1 200 BUT or DIL IPSDD0815
870 55 6 0.1 180 BUT or DIL IPSDD0816
880 45 6 0.1 200 BUT or DIL IPSDD0805
880 40 2 0.1 180 BUT or DIL IPSDD0806
880 45 8 0.1 180 BUT or DIL IPSDD0819
880 55 5 0.1 180 BUT or DIL IPSDD0817
900 15 20 0.2 200 BUT or DIL IPSDD0902
900 15 35 0.2 200 TO 8 or 9 Ex-Window IPSDT0901
900 30 10 0.1 200 TO 8 or 9 Ex-Window IPSDT0902
900 45 7 0.1 200 BUT or DIL IPSDD0903
920 30 3 0.1 150 BUT or DIL IPSDD0901
920 55 8 0.1 200 BUT or DIL IPSDD0904
920 90 5 0.1 200 BUT or DIL IPSDD0905
980 25 5 0.1 250 BUT or DIL IPSDD0906
1020 100 10 0.15 250 BUT or DIL IPSDD1001
1020 60 7 0.1 150 BUT or DIL IPSDD1005
1020 110 15 0.1 300 BUT or DIL IPSDD1006
1040 55 30 0.2 400 BUT or DIL IPSDD1007
1040 70 10 0.1 250 BUT or DIL IPSDD1002
1050 45 35 0.2 400 BUT or DIL IPSDD1008
1050 55 15 0.1 300 BUT or DIL IPSDD1009
1050 55 30 0.1 400 BUT or DIL IPSDD1003
1070 60 5 0.1 500 BUT or DIL IPSDD1010
1070 60 10 0.15 400 BUT or DIL IPSDD1004
1280 55 10 0.15 350 BUT or DIL IPSDD1201
1280 70 5 0.15 300 BUT or DIL IPSDD1202
1280 95 18 0.15 500 BUT or DIL IPSDD1203
1310 40 1.5 0.1 120 TO 8, 9 or 56 Ex-Window IPSDT1301
1310 40 0.5 0.1 120 TO 56 pigtail Ex-Fiber IPSDT1303
1310 40 5 0.1 150 TO 8, 9 or 56 Ex-Window IPSDT1302
1310 40 35 0.2 400 BUT or DIL IPSDD1305
1310 45 1 0.1 120 BUT or DIL IPSDD1301
1310 45 20 0.2 350 BUT or DIL IPSDD1302
1310 45 25 0.4 350 BUT or DIL IPSDD1309
1310 50 15 0.2 150 TO 8, 9 or 56 Ex-Window IPSDT1310
1310 55 7 0.2 300 BUT or DIL IPSDD1303
1310 55 20 0.2 450 BUT or DIL IPSDD1304
1310 55 25 0.4 350 BUT or DIL IPSDD1311
1310 70 18 0.2 500 BUT or DIL IPSDD1306
1310 65 15 0.15 250 BUT or DIL IPSDD1312
1310 80 15 0.2 450 BUT or DIL IPSDD1307
1310 90 10 0.15 350 BUT or DIL IPSDD1313
1310 100 3 0.1 180 BUT or DIL IPSDD1308
1410 50 10 0.15 300 BUT or DIL IPSDD1401
1410 60 15 0.15 450 BUT or DIL IPSDD1402
1410 70 10 0.15 550 BUT or DIL IPSDD1403
1490 50 5 0.2 200 BUT or DIL IPSDD1404
1490 65 18 0.3 500 BUT or DIL IPSDD1405
1520 50 15 0.15 400 BUT or DIL IPSDD1505
1520 75 10 0.15 350 BUT or DIL IPSDD1506
1550 40 0.2 0.15 120 TO 56 pigtail Ex-Fiber IPSDT1501
1550 55 0.5 0.1 120 BUT or DIL IPSDD1501
1550 55 5 0.2 200 BUT or DIL IPSDD1502
1550 60 3 0.2 300 BUT or DIL IPSDD1503
1550 50 3 0.2 150 TO 8, 9 or 56 Ex-Window IPSDT1502
1550 60 10 0.2 300 BUT or DIL IPSDD1504
1550 65 12 0.15 300 BUT or DIL IPSDD1507
1550 65 20 0.4 450 BUT or DIL IPSDD1508
1550 90 8 0.15 300 BUT or DIL IPSDD1509
1580 60 5 0.2 300 BUT or DIL IPSDD1510
1580 75 10 0.4 300 BUT or DIL IPSDD1511
1610 55 2 0.1 250 BUT or DIL IPSDD1601
1610 65 5 0.15 250 BUT or DIL IPSDD1602
1640 40 5 0.2 400 BUT or DIL IPSDD1603
1640 50 3 0.1 200 BUT or DIL IPSDD1604