passing "this" to a constructor

Question

I have a base class BLLContext:

public sealed class BLLContext : IDisposable
{
    private LayersSharedObjects _layersSharedObjects = null;
    internal HttpContext httpContext = HttpContext.Current;

    Authorization _authorization = null;

    public Authorization Authorization
    {
        get
        {
            if (_authorization == null)
            {
                _authorization = new Authorization(this);
            }

            return _authorization;
        }
    }

    public BLLContext()
    {

    }
}

All of my BLL classes has a constructor that should get object of the above class. for example:

public class Authorization : BLLBase
{
    public Authorization(BLLContext bLLContext) : base(bLLContext)
    {
    }
}

Everything was ok until i had to get some information from the Authorization class from an instance of BLLContext. So i added the this part to the BLLContext class:

public Authorization Authorization
{
    get
    {
        if (_authorization == null)
        {
            _authorization = new Authorization(this);
        }
        return _authorization;
    }
}

but because Authorization class has to get BLLContext and i am inside BLLContext, i passed "this" to the Authorization constructor.

Can someone explain if it will case to circular reference?, it seems that its not while checking with .Net Profiler.

What should i do to avoid this but still pass "this" and keep the current structure? The system is working well without any significant problems.