Opto Electronics » Exercise – 1
20. Match the items in Group I with items in Group II most suitably
Group I Group II
(P) LED (1) Heavily doped
(Q) Avalanche photo diode (2) Coherent radiation
(R) Tunnel diode (3) Spontaneous emission
(S) LASER (4) Current gain
(a) P-2, Q-1, R-3, S-4
(b) P-4, Q-3, R-2, S-1
(c) P-3, Q-4, R-1, S-2
(d) P-3, Q-2, R-1, S-4
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