EE540_S07_HW_13

EE540_S07_HW_13 - 5/3540 (3 ’06) F/NAL EXAM. (5‘07)...

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Unformatted text preview: 5/3540 (3 ’06) F/NAL EXAM. (5‘07) IL/h/# /3. />./0f 4, Afffucft'ons: Bria? “1/7 fans, fenca'ls‘ incl eraser: ta #9 exam; giver an uln‘cé you al’efo S‘ufimlt X9!!!" auralers ‘0‘” be Julep/I'EJ . Do all RICK/attan 5); Mind '2 . Numerfica/ answer-s need only 59 accurate {a £20% [a receive fad/credit. fad Phi/em will be yraJeJ on a s‘ca/c of 0 to /O M 1%.: beef: of year answer; anCUrl.h9 in 3 5a); laée//ec/ wit/I {is guesb'an numbPr. flny 9/»;60/ fr: flfi é,x M¢ has not ééen deg-49¢ somgufiere in 1-44“? Fajcy (1 to ‘4.) M‘dz A3,: "‘3 defining” I‘M file 60):, or .‘n a repamte 6e): 3/30 /&ée//e<{ UI'M t/w lacrb'neni Wuunumber, No total raw Score 1%:- a [per-feed exam won/d ée lag- fad éaxed answer Mat he: dimensims must Aw: 71-; dimenspan ,Pec/fha,” UJe only Wat/analqfll 3 I " C M KSA ) unrts in ,answers . Introcbcfion : All iAe/oroé/ems ,‘n 211’: exam re/afe fa a. Ga/V dfiaJe {var Jescn'éed z‘n 57674.1, and its zna/fsk éy dur' MoDEL. A- . 77;: lung am/ the (17373709556 «if/’éf’é‘tus referre-l by :‘n tAe exam Prob/ems, are J‘llouln S‘s/tend able/[6’ ,‘n A)./ éLe/aw. : ' 2: 1‘ optical wavegurde carries out a a, ‘Sm all . fractfan of sponf‘aneouJ . cmss’vn 7n f/7elunctfon {a Spedromefe 3 Z . / TL: mad: field 3665‘ f nfi'dfiw tndex=n d g - ‘ z" _ I ‘ . :-:i:::'.:‘:c~:‘:.‘.:‘---'- T in! 5 I: a “ . . ' $50423”; m‘l . ) a 4' 7AM): ' \ \* ‘ Outpufbeam at I . ‘\ frczucncy 76 H2, The ref/ecfiw't'f oft/11‘s front r ,/1 Fewer 1: Watts’ 6r rear) fiéfy-vl’ent' caw‘z‘y \ ' O \ / Ftl'ca‘ ané glide. ym'rr'ar' is R‘ ~(or‘ R2) \ V to S «from ichI, u _ $—> yfiyotl" \Sgcficmafs'c 0f W/ésér' dl‘aclé Cbh‘sr‘Jered a’n '- 537:3»71ul't/1 t/te (“Dyna/{c f.‘ er: [0&51 to s/oectr‘aMeézrs 5/ and 52 inc/12311:], @I‘Ven :‘h Ref. / are .' R,E-‘o./ , Rag-0.5 13‘600 m, 74’; 1.5 m am! 430.5%“ £75. 2 to 4 are reproduced from Ref, 1, F775. 5' and 6 five the result: of year 0am Expen'meni’a an a cammercra/ 'b/one":f’ {fie /asep 0F Ref 1. TAe BhSLderS of Praés‘JlE to tut/l 6: number: . 77;: answers to Rafi/ems 1:61 to will be firmu/a: {Int are “ca/custar—reaa/y " 76r- Eva/11.6 #43 finanifffei. Raf /. S. Nakamura ., Phys. flat. 50/. (a Lyol. ['76 , pp. Is-Zz {/9qu . if 540 (5 '06) FINAL EXAM/NAT/am . Prz G144 40 ' F9 . Z . Ifl/Oaz wagon" ' charaqter/sz‘k of laser. ‘RT CW “me-1n: "roam- . H 25 em eraz‘are contmumswa V: , I? 5000‘ in 3.; E 320 3?» 0‘3 :3 *5 2° \5'10 > 5 13: o .2 ‘(Loo 03’ 0 /50 90 Fay. 3. Output‘ééam I'nz‘e-nsft/ v: lea!» ova/€191:th A for 3': SJ m, 350 am: 50 MW, 7’ recorded by Spgcér‘omefer 31 :‘n /, Relative Intensity (a.u.) 407 400 ' 409 410 A Wavelength (nm) Fig. 4. Laser emission spectra measured under R'_I‘-CW operation at output powers of 3, 10, 30 and SOmW 3 __ 2 mm; IIIIIl-IIIIIIII g 1 po=5mw IIIIII‘IIIIIIII Fig.4. ne’eeaé-ta-feak g a _.___ llllll'l-IIIIIIII mm x man/am," we 3 _1 -IIIIIIIIIIIIIIIIII output Fawer or m /<9$er g _2 -IIIIIIIIIIIIIIIIII beam n, the frefluemuf g _3 -IIIIIIIIIIIIIIIIII ,,a a“, cum”: mam/3H,," E -4 (of fier amp/ftch ) —-IIIIIIl-IIIIIIII 0.1 1 10 ' f Frequency [Ghz] 55540 (5'06) F'M/A'l— EKAM{NAr:aN p.3’ 0,04 . L I'VIEShaPe data, § >~ 1.0 3 '1 1° ' ‘33, 007 4—— LED ("—4 7:74g6n‘t2) _ 9 5 08- . 090000 goooooo'} 5% 8 *4 I . 2 . . s5 OWL é Add AAEZAAAAAAAJ' ., x 7_ .5. 06L 0° Aooaao’égccoabd’ov gt; a” ' ‘ 0 AA60 724— '775’“! < \. 6' '- l o 41 “:1 aa— 0) E o.S|- «so “5553:? ‘3 5 I N 5- : i , OOAAOO DOD; fix.” 0 +1: i N 4- g 0.4,— 00 A00 “a Mvvgggv V? 7‘7 In is (3 ' ‘ | “ . Q; 0 AAOO D XV 7’04'4' J . a l\ I‘ 1 8* H *r: , . o 1 2 3 4 5 F? t, time. after cur-nut [lock (hi). If He a’l'vc/e current? at’ eta folut'z 1.0- 13 sun/gen], maJe arena 2 Me 5:303] {(4194: Currean/z'fl (threshold current) 1744 See» I; {[3 sped‘romeder‘ dgcQ/S .wf'l‘l) Zl'me’ ()(fdm Va/HC at X 3n 75 Shawn above, The Spoufamus emfsxkan {A 1'11: drag juncth 1’5 separafod into It: spegtral Component: 1'” VH3" L7 s/aectrameéersz c'n F99I~ 77w ra/afa‘Ve va/ues of I.‘ fl {"9 sen/en Wrrywencs‘os {-1 7/0, 724’ 729’- ‘744,753, 760 and 775' 71/; are sham vs C Wdfiade currenz l . saME Fd/VMA/IEA/TAL. CVIISTAMTTS 9 P/aucé’s cansfiut I], =6.626 x/O’ +35 5- Ve{acl‘t/ 5" in Vacuum C "" BK/OS ms elepfmn charge, a, :r. [.6x/0-n C I 63:6 0)“ natural /ajafl'MMS e = “((53.14 1MP": 4.343413 . PROBLEMS. In frablems m to@ nine! numerical est/mes a)": 2:94 and fie s/ofe~efi€tl'eu9yEs field/MA), {23 77:9 cavity-male round—twp if'm? 75-,— , and made 'Cfl'acl‘fvelndex r;I . [:33 7": 74'7an 7;” an! moJu/at‘c'orn [peak and (5/5th-l) :‘n 2'7. 4-, ' 77w value it, of Me fines/Rafe functI‘an at 735 —-\ L5_.J The natural lifefl‘me exdfihls (‘5’ {flew/‘uncl/an. . @5540 (5,755) MW “M’V‘T‘” P24vf4- Néfitei—‘Efilfle formalae reZJu'red In Prob/ems to are £21 £6 dawn! from MODEL Afind are to contain Only symééli £62: refr‘eunt’ ' Wnt'ofifef 9’Vch (6-9., ,3, w; d), were QSkEJ fir” [HFreVIOHJ‘ Prob/ems. Hr «awn/cud ,‘n 535 ("can ,L M4 $15”: in! 4., K, or 2.: - Der-Va the/passiue-q’eca/ time 7'; of flu, /2.s‘er manic. [aper’vt tl'e atte’mat‘b". (“m'cv'flt /3 m” of five, /3s€r mode ‘21 Der/re t/Ie flacfl'on i df’fle e/eof'nm: enter/n) fle/unctdm flut- Couf/e 19 2‘19 /2$er' mat/E . when z o Fwd [Ac sflmu/atec/ emissl‘an coefficient K of 1A9 c% 5"“! tke (E'Hfitcfl) Pall: Co¢fi€ka9fit A2, 5,. slopnz‘aneaus em"$$,‘0n of [elm for): ants/n} 79w»: /aSer {rdnJl't/b’): . S‘oME USEFUL EaUATzoNs FROM 'MoDEL A ’, f" mama A , fie ata/ Number NI, of/Jfiofon: :‘n flue lzscr' mac/c. at" (“drug 11' aéc’v: rm) 5.3]; =/<n(M,+/) - 4f anJ Me fofa/ numleryafOXaZ‘d/as cW/egéMA-mmlen dnfiéfl M a?" 3 “Kn/W-i' . : __i__€_{_)_ Here z‘Ae sf'mu/afed emfysybn coefi’n'c/cni K 75' grinfj'L};d fly- a .laser moa’! uAa—re {we wency 225 V, past? ; A/DO {he mac/Ok/Jeca/ é‘me and He exciton lrfitme 7; are defi‘ncc/ 57%91’1) lofrz‘t.‘¢n.: in (Al ) and {42) . I}: (/42 )1 J: is -l"/»c fractfan of e/cd'rons entem'nj .[he junctfan L‘lpaf contribute to the hie/1268f 0F exciton: rift). T714; SteaJy-stafe So/ué/ons and (/42) when 57-2., = 527572/9— we =(d—6. +L 'd—d. a 42' d I+NP/O; w NP 2) (Z)+6] a" 5' "' 0’ zozf‘g/g, anJ 032(K15) . flawpnaaa) When the current is Mada/32584 ano/ 3' ‘=-' 2; +2“ Cos-(me} él<< 7.0/- 7~e Alfie»; NP, +NP,(um)¢os(cumt—é) where NP, << Npo . Uquv/I)’ ’Z; 7A? In w‘foA case a f/oZ" OF A4,,(WM) '5 wrn has maxhnum (&r wreak“) wig" cum 2 Peak . 7/15)? Md jive 2 ~ 32. .. CA3) (apart) : 2",], ' ...
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This note was uploaded on 02/09/2010 for the course EE 40 taught by Professor Rwh during the Spring '07 term at USC.

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EE540_S07_HW_13 - 5/3540 (3 ’06) F/NAL EXAM. (5‘07)...

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