Pat dry the chicken. Place with, onions, garlic, ginger, bay leaves, turmeric, peppercorns, coriander seeds, and several pinches of salt in a 2 quart saucepan and cover with the broth.
Bring to a boil then reduce heat and simmer for 15-20 minutes. Remove the chicken when the thickest part of breast registers 155 F (65 C). Set aside.
Skim fat off the broth, add carrots and angel hair pasta, bring to a simmer, and cook until carrots are al denté, about 3 minutes. The angel hair pasta will also be cooked by then.
Shred chicken, add to the soup and serve garnished with scallions and a squeeze of lemon juice.