[1] Ustinov V M and Zhukow A E 2000 Semicond. Sci.
Technol. 15 R41

[2] Sellers I R, Liu H Y, Groom K M, Childs D T, Robbins D,
Badcock T J, Hopkinson M, Mowbray D J and Skolnick A S 2004
Electron. Lett. 40 1412

[3] Liu H Y, Liew S L., Badcock T, Mowbray D J, Skolnick M S,
Ray S K, Choi T L, Groom K M, Stevens B, Hasbullah F, Jin C Y,
Hopkinson M and Hogg R A 2006 Appl. Phys. Lett. 89
073113

[4] Peng C S, Jouthi T, Laukkanen, Pavelescu E M, Pavescu E M,
Konttinen J, Li W and Pessa M 2000 IEEE Photonics Technol.
Lett. 14 275

[5] Zhang S Y, Niu Z C, Ni H Q, Wu D H, He Z H, Sun Z, Han Q
and Wu R H 2005 Appl. Phys. Lett. 87 161911

[6] Hopkinson M, Jin C Y, Liu H Y and Airey R 2006
Electron. Lett. 42 923

[7] Jaschke G, Jin C Y, Liu H Y, Navaretti P and Riechert H
2005 J. Cryst. Growth 278 224

[8] Niu Z C, Zhang S Y, Ni H Q, Wu D H, Zhao H, Peng H L, Xu Y
Q, Li S Y, He Z H, Ren Z W, Han Q, Yang X Y, Du Y and Wu R H 2005
Appl. Phys. Lett. 87 231121

[9] Bank S R, Bae H P, Yuen H B, Wistey M A, Goddard L L and
Harris J S 2006 Electron. Lett. 42 156

[10] Eisenbeiser K, Droopad R and Huang J H 1999 IEEE
Electron. Device Lett. 20 507

[11] Zeng H Q, Radhakrishnan K, Wang H, Yuan K H, Yoon S F and
Ng G I 2000 Appl. Phys. Lett. 77 869

[12] Zhukov A E, Kovsh A R, Mikhrin S S, Semenova E S, Maleev
N A, Vasil'ev A P, Nikitina E V, Kryzhanovskaya N V, Gladyshev A G,
Shernyakov Y M, Musikhin Y G, Maksimov M V, Ledentsov N N, Ustinov V
M and Alferov Z I 2003 Semiconductors 37 1143

[13] Tangring I, Wang S, Sadeghi M and Larsson A 2006
Electron. Lett. 42 691

[14] Ledentsov N N et al 2004 Quantum Dot Lasers: Physics
and Applications, SPIE Asia-Pacific Optical Communications (APOC
'04) (Beijing, China, November 2004)

[15] Cordier Y and Ferr\`{e D 1999 J. Cryst. Growth
201/202 263