text: Yo, check it out, here's the deal,
  We got an electric tube furnace, it's real,
  Designed for makin' doped glass microsphere lasers,
  Let me break it down for you, no time to be haters.
  
  The furnace got a short hot zone, 133 mm long,
  Quartz tube design, it's where it belongs,
  Blowin' in those doped laser glass particles, oh so fine,
  Er:Yb phosphate glass (IOG-2), 'bout 1 microm in size, that's the shine.
  
  We use a 60 ml syringe to make it flow,
  Injectin' those microspheres, watch 'em go,
  Sizes range from 10 to 400 microm, we collect 'em right,
  In a Petri dish, sparklin' under the light.
  
  This furnace runs hot, 'bout 900 degrees C it gets,
  Makin' microspheres from glasses with high glass transition temps,
  At least 375 degrees C, that's the minimum,
  We're pushin' the boundaries, ain't no limitin'.
  
  Whisperin' gallery modes, we got 'em in check,
  Q factor 'bout 10 to the power of 5, that's respect,
  Optically pumpin' at 978 nm, we got the power,
  Through a tapered optical fiber, it's our finest hour.